Questão jurídica principal
Whether the appellate maintenance calculation for the first period was arbitrary due to misallocation of the surplus
Decisão extraída
Yes. The surplus was allocated incorrectly; the wife's share had to be corrected and the husband's appeal was upheld to that extent.
Fundamentação extraída
The cantonal court double-counted the wife's surplus component. After correction, the husband still had to pay no less than what he had conceded before the Federal Court, so relief was limited to the requested amount.