The district court found that the overall total, including holidays, is 45 percent, regardless of whether respondent exercises her additional overnight per month with each child. Because the record supports the district court's calculations regarding time allocations, the district court did not abuse its discretion in ruling that the amount of physical care provided by the respective parties did not change. Consequently, continued application of the Tweeton formula was required, and the district court did not abuse its discretion in denying the portion of appellant's motion to modify support based on the alleged change in the amount of time the children spent with respondent. B. Decreased Income Appellant's second argument for a substantial change in circumstances is based on his decreased income. If this court is unable to determine from the district court's findings whether the statutory requirements were properly met, this court will remand for further findings.
Particularized findings are necessary in child support cases.
Id. Findings also are necessary if a court wishes to refuse modification of child support. Because the findings fail to show that the district court considered the appropriate statutory factors, we reverse and remand for further findings on this issue. Sua Sponte Modification of Child Support Appellant claims the district court abused its discretion by increasing his child-support obligation on its own initiative. Appellant initially moved to clarify the district court's decision to terminate spousal maintenance. The district court agreed with appellant that there was a clerical mistake, and terminated his spousal maintenance obligation one year earlier than provided in its previous order.