Amanda Swanson Niblett (“mother”) appeals the trial court’s refusal to impute income to Jason Daniel Niblett (“father”), for purposes of estabhshing father’s initial child *622support obligation, after the court found father was voluntarily unemployed because of his incarceration. We conclude the trial court erred in not considering father’s recent past earnings; accordingly, we reverse and remand to the trial court.
I. BACKGROUND
“When reviewing a trial court’s decision on appeal, we view the evidence in the light most favorable to the prevailing party, granting it the benefit of any reasonable inferences.” Congdon v. Congdon, 40 Va.App. 255, 258, 578 S.E.2d 833, 835 (2003). In this case, father was the prevailing party in the trial court.
Mother and father were married on or about May 8, 2010 and have two children. Mother was granted a divorce on the grounds of father’s adultery with a minor female who was residing in the home of the parties. Father was convicted of crimes related to his sexual conduct with the minor female and sentenced to an active three-year penitentiary sentence. He has remained incarcerated since his arrest in March 2014.
Father testified that before he was incarcerated he had worked for nine and a half years as a car salesman. He also testified that he had some training in vehicle reconditioning and had a two-year degree in arts and sciences. In 2013, father earned approximately $85,700 as a commissioned car salesman. After father’s arrest in March 2014, his employer continued to pay him a base salary of $3000 per month through December 2014. Father’s 2014 W-2 listed wages of approximately $54,500 from this job.
At the April 3, 2015 hearing regarding child support, the parties did not dispute that due to father’s incarceration he had no income for purposes of calculating the presumptive child support amount. Nevertheless, mother argued that father was voluntarily unemployed because he voluntarily chose the conduct that resulted in his incarceration. Mother therefore argued that the trial court should impute father’s pre-incarceration income to him, and thus deviate from the presumptive child support guidelines.
*623Father argued that he would have no source of income until he was released from confinement. Father further argued that it was speculative whether any car dealership would hire him in the future now that he had two felony convictions and was required to register as a sex offender. Father urged that even if the court found that father was voluntarily unemployed, it should nevertheless refuse to impute income because future earnings were speculative.
In response, mother argued that although future income might be speculative, case law requires the court to look to past wages, and to consider what father “was making before his criminal acts got him locked up.” Mother asked the court to impute those recent past earnings to father.
The court found father was voluntarily unemployed because he was unable to work due to his own voluntary acts. The court declined to impute income, however. The court reasoned that based on this Court’s opinion in Donnell v. Donnell, 20 Va.App. 37, 455 S.E.2d 256 (1995), it was precluded from imputing income. Although the court was “not sure [it] like[d] that result,” it reasoned that “to pick an amount out of the air, essentially, as to what his income would be would be speculating as against the requirements of the Jacobs[ v. Jacobs, 219 Va. 993, 995, 254 S.E.2d 56, 58 (1979),] and the Payne[ v. Payne, 5 Va.App. 359, 363, 363 S.E.2d 428, 430 (1987),] case[s].” The court then awarded the presumptive statutory minimum amount of $104 per month. Mother timely appealed.
II. ANALYSIS
A. Standard of Review
“We begin our analysis by recognizing the well-established principle that all trial court rulings come to an appellate court with a presumption of correctness. Thus, we will not invalidate a court’s decree unless the only reasonable interpretation thereof requires invalidation.” Stiles v. Stiles, 48 Va. App. 449, 453, 632 S.E.2d 607, 609 (2006) (quoting Riggins v. O’Brien, 263 Va. 444, 448, 559 S.E.2d 673, 675-76 (2002)).
*624“The determination of child support is a matter of discretion for the circuit court, and therefore we will not disturb its judgment on appeal unless plainly wrong or unsupported by the evidence.” Oley v. Branch, 63 Va.App. 681, 699, 762 S.E.2d 790, 799 (2014). Child support decisions, like “[s]pousal support determinations^] typically involve fact-specific decisions best left in the ‘sound discretion’ of the trial court.” Brandau v. Brandau, 52 Va.App. 632, 641, 666 S.E.2d 532, 537 (2008) (quoting McKee v. McKee, 52 Va.App. 482, 489, 664 S.E.2d 505, 509 (2008) (en banc)). The court’s discretion, however, is not without bounds. The General Assembly has included mandatory steps that a court must follow when exercising its discretion in calculating child support. See generally Code § 20-108.1. As a result, the court’s calculation of child support obligations is a combination of mandatory steps and broad discretion. “[U]nless it appears from the record that the circuit court judge has abused his discretion by not considering or by misapplying one of the statutory mandates, the child support award will not be reversed on appeal.” Milam v. Milam, 65 Va.App. 439, 451, 778 S.E.2d 535, 541 (2015).
An abuse of discretion ... can occur in three principal ways: when a relevant factor that should have been given significant weight is not considered; when an irrelevant or improper factor is considered and given significant weight; and when all proper factors, and no improper ones, are considered, but the court, in weighing those factors, commits a clear error of judgment.
Landrum v. Chippenham & Johnston-Willis Hosps., 282 Va. 346, 352, 717 S.E.2d 134, 137 (2011) (alteration in original) (quoting Kern v. TXO Prod. Corp., 738 F.2d 968, 970 (8th Cir.1984)).
B. The Statutory Scheme for Determining Child Support
“The court’s paramount concern when awarding child support is the best interest of the children.” Stiles, 48 Va.App. at 456, 632 S.E.2d at 611; L.C.S. v. S.A.S., 19 Va.App. 709, 717, 453 S.E.2d 580, 585 (1995) (“In setting an award of *625child support, the ‘primary issue before a trial court judge is the welfare and best interests of the child, not the convenience or personal preference of a parent.’ ” (quoting Brody v. Brody, 16 Va.App. 647, 651, 432 S.E.2d 20, 22 (1993))). “The court must consider the basic needs of the child, the parent’s ability to pay, and to the extent that the parent is able to provide more than the basic necessities of life, the degree to which the child should reasonably share in his or her parents’ prosperity.” Conway v. Conway, 10 Va.App. 653, 658, 395 S.E.2d 464, 466-67 (1990).
1. The Rebuttable Presumption
The starting point in any award of child support is the presumptive calculations set out in Code § 20-108.2. In calculating child support, a “court is [first] required to determine the presumptive child support amount by using the statutory guidelines.” Id. “The guidelines in Code § 20-108.2 require a court to calculate the ‘presumptive amount of child support as a percentage of the parents’ combined gross monthly incomes.’ ” L.C.S., 19 Va.App. at 717, 453 S.E.2d at 585 (quoting Barnhill v. Brooks, 15 Va.App. 696, 699, 427 S.E.2d 209, 212 (1993)). “The amount of child support under the child support guidelines must be based on the parents’ actual gross income.” West v. West, 53 Va.App. 125, 135, 669 S.E.2d 390, 395 (2008) (citing Code § 20-108.2(C). “There is a rebuttable presumption that the amount determined in accordance with the statutory guidelines, Code § 20-108.2, is the correct award.” Brooks v. Rogers, 18 Va.App. 585, 591, 445 S.E.2d 725, 728 (1994).
2. Imputation of Income for Voluntary Unemployment
Nevertheless, the amount calculated by applying the guidelines is presumptive only; other evidence may be sufficient to rebut that presumption. Section 20-108.1 expressly identifies fourteen factors that are relevant in determining if the trial court is warranted in varying from the presumptive amount, and the statute additionally provides authority for the court to consider “[s]uch other factors as are necessary to *626consider the equities for the parents and child.” Code § 20-108.1(B)(15). One of the Code § 20-108.1 factors is: “Imputed income to a party who is voluntarily unemployed or voluntarily under-employed.... ” Code § 20-108.1(B)(3).
Even “[b]efore the presumptive guidelines came into effect and the law specifically allowed the imputation of income, the Virginia Supreme Court had already recognized that the key factor [in determining child support] was the spouse’s ability to pay and not necessarily the amount of actual earnings.”1 Bishop Cochran v. Cochran, 14 Va.App. 827, 830, 419 S.E.2d 419, 421 (1992) (citing Hawkins v. Hawkins, 187 Va. 595, 600, 47 S.E.2d 436, 439 (1948)). Section 20-108.1(B)(3) “does not expressly require the court to impute income to a parent found to be voluntarily unemployed, but such a reading is implicit both in the text of the statute itself and in this Court’s prior opinions interpreting that text.” Hamel v. Hamel, 18 Va.App. 10, 12-13, 441 S.E.2d 221, 222 (1994); see also Blackburn v. Michael, 30 Va.App. 95, 103, 515 S.E.2d 780, 784 (1999) (reversing a trial court’s refusal to impute income to voluntarily unemployed mother for spousal support purposes even though it had imputed income for child support purposes). This requirement naturally flows from the principle that “[t]he general rule in Virginia is that the amount of child support depends not solely upon the child’s needs, but *627also upon the ability of a parent to provide support,” and the “ability of a parent to pay support is determined not merely by the actual income of the payor parent, but also on the ability to earn.” Peter N. Swisher, Lawrence D. Diehl, & James R. Cottrell, Virginia Family Law: Theory, Practice & Forms § 10:5 (2015). “Following a divorce, a parent may not voluntarily pursue low paying employment ‘to the detriment of support obligations to the children.’ ” Niemiec v. Dep’t of Soc. Servs., Div. of Child Support Enf't ex rel. Niemiec, 27 Va.App. 446, 451, 499 S.E.2d 576, 579 (1998) (quoting Brody, 16 Va. App. at 651, 432 S.E.2d at 22); see also Bishop Cochran, 14 Va.App. at 830, 419 S.E.2d at 421 (“[W]hen one makes a job change to the detriment of one’s family, it is not the family who should suffer but the one who made the job change.”). “As such, except as provided in Code § 20-108.1(B)(3), a trial court determining child support is required to impute income to a parent who is found to be voluntarily underemployed.”2 *628Niemiec, 27 Va.App. at 451, 499 S.E.2d at 579 (emphasis added).
3. Calculating the Amount of Imputed Income
Section 20-108.1 provides that “the court shall consider all evidence presented relevant to any issues joined in that proceeding ... [and that] the court’s decision in any such proceeding shall be rendered upon the evidence relevant to each individual case.” (Emphasis added). Thus, when a party raises voluntary unemployment as an issue in the case, Code § 20-108.1(B) requires the court to “consider all evidence presented relevant to” how much income should be imputed to the unemployed party.
Imputed income may be calculated from evidence showing a higher-paying former job voluntarily quit by the parent, from evidence showing that more lucrative work is currently available to the parent, or from evidence showing recent past earnings. Mir v. Mir, 39 Va.App. 119, 128, 571 S.E.2d 299, 304 (2002). The recent past earnings of a volun*629tarily unemployed parent often provides the most reasonable estimate of earning capacity. See, e.g., O’Hara v. O’Hara, 45 Va.App. 788, 798, 618 S.E.2d 859, 864 (2005) (affirming imputation of income “based on an average of wife’s income over the past several years”); Niemiec, 27 Va.App. at 451, 499 S.E.2d at 579 (reversing the trial court’s calculation of imputed income where evidence of recent past earnings did not support the amount); Bishop Cochran, 14 Va.App. at 831, 419 S.E.2d at 421 (holding that the trial court erred when it did not consider “what the husband could have been reasonably expected to have earned ... based upon the recent work history and other pertinent circumstances); see also Marian F. Dobbs, Determining Child & Spousal Support § 4:37, at 890 (2015) (“Although the court’s inquiry is not limited to recent years in determining the potential income of a voluntarily impoverished parent, some courts consider the wage earned prior to voluntary underemployment as the best estimate of earning potential.” (footnote omitted)).
The evidence presented must be sufficient to “enable the trial judge reasonably to project what amount could [have been] anticipated” had the parent not become voluntarily unemployed. Albert v. Albert, 38 Va.App. 284, 295, 563 S.E.2d 389, 395 (2002) (quoting Hur v. Va. Dep’t of Soc. Servs. Div. of Child Support Enf't ex rel. Klopp, 13 Va.App. 54, 61, 409 S.E.2d 454, 459 (1991)). As a result, the imputed amount “must be based on circumstances existing at the time the award is made,” Mir, 39 Va.App. at 128, 571 S.E.2d at 304, and “not upon speculation or conjecture,” id. (quoting Niemiec, 27 Va.App. at 452, 499 S.E.2d at 579). See id. at 129, 571 S.E.2d at 304 (“[The court] must consider the parent’s earning capacity, financial resources, education and training, ability to secure such education and training, and other factors relevant to the equities of the parents and children.” (quoting Niemiec, 27 Va.App. at 451, 499 S.E.2d at 579)). Thus, a parent’s wages or other earnings at the time he or she became voluntarily unemployed are not only relevant in determining imputed income, they can be the most probative evidence of current earning capacity.
*6304. Decision to Deviate from the Presumptive Guidelines
While the court is required to assign and consider imputed income when it finds a parent is voluntarily unemployed, that consideration will not necessarily result in a deviation from the presumptive guidelines. Imputation of income is only one of the factors provided in Code § 20-108.1(B) that “affect[s] the obligation [and] the ability of each [parent] to provide child support” and which may justify deviation from the presumptive amount. Therefore, any decision to deviate from the guidelines by imputing income must be done within a review of the “[statutory] factors ..., the ability of each party to provide child support, and the best interests of the child.” Code § 20-108.1(B). As a general rule, “[w]hat weight, if any, to assign to this [or that] factor in the overall decision lies within the trial court’s sound discretion.” Robbins v. Robbins, 48 Va.App. 466, 481, 632 S.E.2d 615, 622 (2006) (second alteration in original) (quoting Owens v. Owens, 41 Va.App. 844, 859, 589 S.E.2d 488, 496 (2003)).
The requirement that the trial court consider all of the statutory factors necessarily implies substantive consideration of the evidence presented as it relates to all of the [Code § 20-108.1] factors. This does not mean that the trial court is required to quantify or elaborate exactly what weight or consideration it has given to each of the statutory factors. It does mean, however, that the court’s findings must have some foundation based on the evidence presented.
Wagner v. Wagner, 4 Va.App. 397, 409-10, 358 S.E.2d 407, 413-14 (1987). “As we have often said: ‘[T]he trial court must consider each of the statutory factors, but may determine what weight to assign to each of them.’ ” Robbins, 48 Va.App. at 481, 632 S.E.2d at 622 (quoting Owens, 41 Va.App. at 859, 589 S.E.2d at 496 (citation omitted)).
“If the court determines from the evidence that imputation of income to a parent is justified, the award is ‘calculated by adding ... a just and appropriate amount [to] the amount reflected in Code § 20-108.2,’ accompanied by the *631requisite written findings.” Brooks, 18 Va.App. at 592, 445 S.E.2d at 729 (alteration in original) (quoting Richardson, 12 Va.App. at 19, 401 S.E.2d at 895).
C. The Trial Court Erred in Failing to Consider Imputed Income
Here, the court determined the presumptive child support amount using zero as father’s current income while incarcerated. The court further found that father’s incarceration constituted voluntary unemployment. See Layman v. Layman, 25 Va.App. 365, 368, 488 S.E.2d 658, 659 (1997) (holding “that a parent’s incarceration may be found to constitute voluntary unemployment under Code § 20-108.1(B)(3)”3). These factual findings are not disputed on appeal.
However, after finding father voluntarily unemployed, the court erred in failing to consider evidence presented supporting the imputation of income. Father’s recent past earnings provided a reasonable estimate of father’s current earning capacity. See Mir, 39 Va.App. at 128, 571 S.E.2d at 304. The court had before it evidence showing that father earned approximately $85,700 in 2013 as a commissioned salesman and earned approximately $54,500 in 2014, the year he was incarcerated. Upon incarceration, father received no commissions, but he continued to earn approximately $3000 per month in wages for the remainder of 2014. Thus, at the time of the April 3, 2015 hearing, the court had before it evidence showing recent past earnings. There is nothing in the record to suggest that father would not have continued to earn the same amount had he not voluntarily decided to commit a criminal act and thus render himself unemployed. The recent past earnings were not based upon speculation or conjecture, *632see id., but rather reasonably projected what amount father could have been anticipated to earn had he not become voluntarily unemployed, see Albert, 38 Va.App. at 295, 563 S.E.2d at 395. Consequently, the court was required to consider recent past earnings when deciding whether to deviate from the presumptive child support amount.
The trial court reasoned, however, that imputing income would be speculating as to father’s post-incarceration income. The court, citing Donnell, 20 Va.App. 37, 455 S.E.2d 256, concluded that imputing income would require “pickfing] an amount out of the air, essentially, as to what [father’s] income would be” post-incarceration. We disagree.
In the case before us, we are not concerned with what the father might earn upon his release from incarceration. Rather, we are concerned with what the father would have been earning on the date of the hearing but for his voluntary unemployment.4 “The [mother] was required only to produce evidence that was sufficient to ‘enable the trial judge reasonably to project what amount could be anticipated’ had the [father] continued in [his] employment.” Brody, 16 Va.App. at 651, 432 S.E.2d at 22 (quoting Hur, 13 Va.App. at 60, 409 S.E.2d at 458).
*633Donnell, on the other hand, concerned an appellant who had retired from his job in anticipation of incarceration. As a result, appellant’s $55,000 annual income was replaced with a monthly retirement income of $1987. 20 Va.App. at 41, 455 S.E.2d at 257. Rather than use the most recent past earnings at the time of the award, which was the monthly retirement income, the trial court imputed to the appellant an income equal to his pre-retirement earnings for purposes of equitable distribution, child support, and determination of a monetary award. Id. We reversed, finding that we “[could] not discern from th[e] record the foundation for either imputing husband’s pre-retirement income or the [monetary] award.” Id. at 42, 455 S.E.2d at 258. The trial court in Donnell did not make a finding that the appellant was voluntarily unemployed or that appellant’s post-retirement earnings would be equivalent to his pre-retirement earnings. Thus, we found that under the facts of that case, “to impute income in that amount is to premise the awards upon the occurrence of an uncertain future circumstance, prohibited by Jacobs [, 219 Va. at 995, 254 S.E.2d at 58,] and Payne [, 5 Va.App. at 363, 363 S.E.2d at 430].” Id. at 41, 455 S.E.2d at 257.
The trial court here concluded that it was “not sure [it] like[d] that result” but that this Court’s holding in Donnell restricted it from imputing income to father because the imputation would amount to speculation. The trial court did not consider Stubblebine v. Stubblebine, 22 Va.App. 703, 473 S.E.2d 72 (1996) (en banc). In Stubblebine, this Court, sitting en banc, affirmed the trial court’s finding that the appellant “had twice voluntarily retired after two careers.” Id. at 708, 473 S.E.2d at 74. At the time of trial, the Stubblebine appellant was thus voluntarily unemployed, distinguishing the case from Donnell. We held that “[i]mputing income to [appellant] on the basis of his recent past earnings did not constitute an abuse of discretion.” Id. at 709, 473 S.E.2d at 74. We further concluded that “based upon the recent record of earnings, the court did not premise the award ‘upon the occurrence of an uncertain future circumstance,’ Jacobs v. *634Jacobs, 219 Va. 993, 995-96, 254 S.E.2d 56, 58 (1979).” Id. at 709, 473 S.E.2d at 75.
In this case, like in Stubblebine and unlike in Donnell, the trial court found that father was voluntarily unemployed. Here, like in Stubblebine, father had recent past earnings. Instead of considering what earnings father might earn post-incarceration, the trial court here should have considered what he would have been making but for his misconduct and based imputed income on recent past earnings. Such earnings were not speculative because they could be established with certainty, and an award based on such earnings does not improperly premise the award upon the occurrence of an uncertain future circumstance. Id. Rather, recent past earnings were evidence of what father likely would have earned had he not become voluntarily unemployed. See Albert, 38 Va.App. at 295, 563 S.E.2d at 395. An abuse of discretion occurred “when a relevant factor that should have been given significant weight,” the recent past earnings, “[was] not considered [and] when an irrelevant or improper factor,” post-incarceration employability, “[was] considered and given significant weight.” Landrum, 282 Va. at 352, 717 S.E.2d at 137. We therefore vacate the trial court’s child support order and remand for the trial court to consider the evidence presented as to father’s recent past earnings as a basis for calculating imputed income.5
Although the trial court was required to impute income to father once the court found him to be voluntarily unemployed, this does not mean that the court is required to deviate from the presumptive guidelines. Rather, the decision to deviate from the guidelines must be done within a review of all the statutory factors as well as “[s]uch other factors as are necessary to consider the equities for the parents and child.” *635Code § 20-108.1(B)(15).6 See also Code § 20-108.1(B) (“The court’s decision in any such proceeding shall be rendered upon the evidence relevant to each individual case.”). Further, although the trial court must consider each of the statutory factors for which evidence is presented, the weight, if any, to give any particular factor in the overall decision lies within the trial court’s sound discretion. Robbins, 48 Va.App. at 481, 632 S.E.2d at 622. Thus, we do not hold that the trial court must deviate from the presumptive guidelines because of the income imputed to father. Rather, we hold that the trial court erred in failing to first consider recent past earnings to calculate the amount of income that should be imputed to father because of his voluntary unemployment. After considering the evidence and the factors, the court may add “ ‘a just and appropriate amount [to] the amount reflected in Code § 20-108.2,’ accompanied by the requisite written findings,”7 Brooks, 18 Va.App. at 592, 445 S.E.2d at 729 (alteration in original) (quoting *636Richardson, 12 Va.App. at 20, 401 S.E.2d at 895), or the court may conclude that deviation from the presumptive guidelines is not appropriate in this case.
III. CONCLUSION
Because the court erred by not considering recent past earnings when deciding whether father’s voluntary unemployment should result in deviation from the presumptive guidelines, we reverse the court’s child support award and remand to the trial court for further consideration consistent with this opinion.
Reversed and remanded.