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Just curious, when would those ever come into play?
Here, expenses are broken up by the person's pay... All the money goes into a pool and they decide Parent A would have contributed X% towards finances and Parent B would have contributed X%. The only other expenses that can get added on top of it are childcare and medical expenses. I could see tracking those, so you can collect the other parent's portion, but I don't see a benefit to tracking any other expenses.
Thanks. This is a tough one because you want to create the best possible situation for all involved, but some attempts to do so wind up rather self-defeating due to unnecessary stress put on one or both parents and by extension, the kids.
The formulas are basic and generally for wage earners. When there is more money the court seeks to keep the children in the same lifestyle they are used to. That can be thousands of dollars per month per child in support.