There is a statute that provides the presumptive amount of child support that should be awarded. It is based on the party’s gross income less certain deductions, multiplied by a percentage. The percentage varies based on the number of children. 1 -17%, 2 -25%, 3-29%, 4-31%, 5+-35%. If a parties income exceeds a cap amount, which increases over time, then it is discretionary with the court, based on certain enumerated factors set forth in the statute.