Questão jurídica principal
Whether the cantonal court could rely on the prior family budget despite changed or false expense items
Decisão extraída
No. Several budget items had changed or been wrongly included, so relying on the unchanged prior budget was arbitrary.
Fundamentação extraída
Modification proceedings may correct a prior maintenance calculation when the factual basis later proves false or has materially changed; they are not limited to changed circumstances only if the earlier basis remains accurate.