Angry dad,
My case scenerio: When we married I agreed to be a stay home mom I had a career as a legal secretary, I gave up willingly to have his children. He owned his own business so he had to work hard to make it work, he is now making over 3 million a year. I also took care of his kids from prior marriage and his sickly mom. I never got paid for any of this. If I were to charge for "housekeeper", nanny", wet nurse (I breast fed my children), "taxi", "nurse", son has allergies and asthma, motherinlaw sick etc.., "on call 24/7". Now lets get realistic here.
My ex couln't do all the above and work for a living. He neither could afford to hire those individual people to run his household.
He cheated on me, was abusive and was never home until 11:00 p.m. and gone by 8:00 a.m. (he'd wake me up when he got home to yell, scream or fight with me, he'd be drunk or high or both)
When I left, I left with my children in FEAR of my life. Friends took me and my two small children into their house and supported us for over 2 months. Yes, they already had a house etc...
They had an apartment open up and I moved into that. I had rent to pay, utilities, food, diapers. Ex to be still had not paid me any support and friends again helped me with a lawyer, I started receiving child support which was more than I ever made working full time as a legal secretary. Now if I were to go to work and make over 15,000 ayear, cs reduced,but I now have to pay 200 a week daycare for 2 children, in your equation I noticed you didn't have that down. So, with making say $16,000 a year well do the math I am horrible in math.
I feel cs is needed as the mom or dad, whoever has physical custody is all the above people and deserve cs from the other to help make ends meet. Because lets say, ex remarries and has children she receives cs from her ex and has bio dads' kids well, he just is where he was when he was married to the bio mom.