The monthly resources of the person paying support are used to determine child support. Calculations are made by taking the gross pay and subtracting taxes withheld and insurance coverage for the child(ren) only. Then the net resources are multiplied by a percentage depending on the number of children involved. For example, if the net resources were $3000/mn. and there are 2 children, 25% of the $3000/mn resulting is a figure of $750 for child support.