The separation agreement executed by the parties contained the following provision: “If and when it is no longer necessary-for the party of the first part [the husband] to pay for the support of the party of the second part, [the wife] it is understood and agreed between the parties hereto that he, the said party of the first part will furnish adequate support for his minor child sufficient to retain the standard of living to which he had been accustomed. . . .” Plaintiff-husband challenges the conclusion in the court’s order that this phrase “was intended by the parties and does refer to the possibility that the defendant herein might in the future remarry or die.”
Although the provision in question was included in the separation agreement executed on 6 April 1975, it was incorporated by reference into the consent judgment of 8 October 1976 and made an integral part thereof. A consent judgment is a contract between the parties théreto and should be construed as any other contract. Mullen v. Sawyer, 277 N.C. 623, 178 S.E. 2d 425 (1971). It is a cardinal rule of contract interpretation that when there is no clear apparent meaning to be discerned from a contract provision, a court, in seeking to ascertain the intent of the parties, must focus on all the surrounding circumstances at the time the contract was made. 4 Williston on Contracts, § 618, p. 716 (3d ed. 1961). The court, in this instance, properly concluded that the provision in question was ambiguous in that the parties’ agreement gives no guidance as to what is meant by the phrase, “when it is no longer necessary.” After examining the circumstances surrounding the entry of the consent judgment, particularly the fact that defendant-wife was employed at a salary of $11,200.00 per year at that time, the court concluded that the intent of the parties was to provide for continued child support *507payments in the event of defendant-wife’s death or remarriage. The court’s interpretation is not unreasonable in light of the evidence presented. We thus find no merit in plaintiff-husband’s first assignment of error.
Modification of support and alimony provisions contained in a judgment may only be obtained as provided for in G.S. 50-13.7 and G.S. 50-16.9 upon, “a showing of changed circumstances by either party or anyone interested.” These statutes have been construed to require a showing of a substantial change in circumstances. See Rothman v. Rothman, 6 N.C. App. 401, 170 S.E. 2d 140 (1969). Plaintiff-husband assigns error to the court’s conclusion in this instance that he failed to show a substantial change in either his own or the circumstances of defendant-wife. He also assigns error to the court’s finding on the related issue that any change in his circumstances was voluntarily effected by him in disregard of his marital and parental obligations.
 The trial court’s conclusion that the change in plaintiff-husband’s circumstances was voluntarily effected by him in disregard of his marital and parental obligations is denominated in the court’s order as a finding of fact. What is designated by the trial court as a finding of fact, however, will be treated on review as a conclusion of law if essentially of that character. 5 C.J.S., Appeal and Error, § 1454, p. 578. “The label of fact put upon a conclusion of law will not defeat appellate review.” Charlotte v. Heath, 226 N.C. 750, 755, 40 S.E. 2d 600, 604 (1946). The determination that a husband’s change in circumstances has been voluntarily effected by him in disregard of his marital and parental obligations justifying imposition of the earnings capacity rule is a conclusion of law based on the factual findings in the particular case, and our review of the court’s order will proceed on that basis.
When a court concludes as a matter of law on the basis of the evidence presented that a husband has failed to exercise his reasonable capacity to earn because of a disregard of his marital and parental obligations to provide reasonable support for his wife and minor child, the court may base an alimony and/or child support award on the individual’s ability to earn as distinguished from his actual income. Bowes v. Bowes, 287 N.C. 163, 214 S.E. 2d 40 (1975). Similarly, a court may refuse to modify a support and/or *508alimony award on the same grounds. Robinson v. Robinson, 10 N.C. App. 463, 179 S.E. 2d 144 (1971). In Bowes, Justice Copeland reviewed the cases in which the earnings capacity rule had been applied and concluded that the basic issue to be determined is whether, “the husband, by reducing his income, [is] primarily motivated by a desire to avoid his reasonable support obligations?” Id. at 173, 214 S.E. 2d at 46. In Sguros v. Sguros, 252 N.C. 408, 114 S.E. 2d 79 (1960), the Court held that under the circumstances disclosed so long as the husband acted in “good faith” in accepting employment that resulted in the reduction of his income, application of the earnings capacity rule was improper. In Bowes, Justice Copeland went on to conclude that before applying the earnings capacity rule, “the finder of the fact must have before it sufficient evidence of the proscribed intent.” Id. at 173, 214 S.E. 2d at 46. (Emphasis added.)
The evidence in the present case showed the following: Plaintiff-husband, subsequent to the date on which the consent judgment was entered, voluntarily gave up'his $15,000 per year job as director of recreation on the Cherokee reservation; He did so with the intention of returning to college to complete his undergraduate degree in recreation with the expectation that by obtaining a degree he would become eligible for employment at a higher salary as a recreation director in a different locale. Plaintiff-husband did return to college and arranged to meet his support and alimony obligations from his income under the GI bill. While he was a student at Western Carolina University, plaintiff-husband failed two of his courses. Concerned about mounting financial obligations, plaintiff-husband decided not to return to school and instead took a job with a construction company at an annual salary well below that which he enjoyed while employed as recreation director. While still enrolled as a student, plaintiff-husband declined an offer of employment with another construction company because of transportation difficulties. After the separation of the parties, plaintiff-husband purchased a new car, and subsequent to the entry of the consent judgment, he purchased a mobile home and a motorcycle.
We do not think the evidence summarized above is sufficient to support the court’s conclusion that plaintiff-husband’s change of circumstances was voluntarily effected by him in disregard of his marital and parental support obligations. As the cases dis*509cussed above correctly observe, the court’s conclusion underlying imposition of the earnings capacity rule must be based on evidence that tends to show the husband’s actions resulting in the reduction of his income were not taken in “good faith.” Evidence of intent such as “bad faith” generally can be proven, if at all, only by circumstantial evidence. See Stansbury, N.C. Evidence, § 83, p. 254 (Brandis Rev. 1973). The circumstantial evidence presented in this instance, however, does not offer support for the court’s conclusion. We therefore vacate the order appealed from and remand this case for rehearing. Having vacated the order it is not necessary to consider appellant’s assignment of error to the court’s finding that no change in defendant-wife’s circumstances had been shown.
Vacated and remanded.
Judges Hedrick and Mitchell concur.