The Court can order an amount of child support 5% higher or lower than the statute calls for. But if they want to deviate more than 5% the court needs to give legally sufficient reasons. Court don’t often deviate more than 5% but it can be done in unusual circumstances. (ie such as where a child has unique needs, like a need for expensive medicine.)
A deviation from the base child support amount can also take place where a parent spends “significant” or “substantial” time with the children. (and where a parent really doesn’t spend very much time with the children at all.) Another issue is about whether there’s justification for deviation from the child support guidelines amount where there are “subsequent” children. ( that means children residing with one parent that were adopted or born subsequent to the support obligation arising)