Who pays for child care?

I finally got a job. I make 32K and my son’s father makes 90K. He says he doesn’t need the afteschool/trackout because his schedule will permit him to pick up on his days. However the program doesn’t do part time not many do. It is a set fee of $300 per month and that includes afterschool and track outs. Even though I’m paying 100% he still uses it too but refused to chip in. He pays $900 per month in child support and says that is his contribution… Now he is asking me to pay for tutoring. I can barely make ends meet and I don’t know what to do. Please advise?

Child support should be recalculated and the child care costs entered into the equation.