Just paid the 33 to try to figure out the net cost of post secondary. Unfortunately when I plug in the numbers it does give the amount owed for the non custodial parent but not what the custodial would be paying. For example the cost is 4K and the program says your share is 200/month. Not sure how to work it out with 3 people paying. Add the salaries of the 2 men paying and then figure out the percentage of that result?