Calculation of Support: Child Support Half-Time Dad

I have a six year old daughter who I spend as much to as possible with. I've recently moved to make sure that she still attends the same school because her mother wanted to move out of district. We split our time with her 50/50. Her mother pays for her health insurance but I have been paying $400 to $470 a month to my ex despite being a half time dad. My ex is constantly threatening to take my child away from me and has taken some of my time in order to punish me when I don't do as she asks. We have never gone to court but she keeps telling me they would take my daughter away from me. I have no criminal record, don't smoke or do drugs, have had a stable job since before my child was born, and I love my daughter very much and have a very good relationship with her. I need to know if going to court could hinder my time with my daughter but being a half time dad I also want to know what I am obligated to pay my ex.Also our relationship was ended by her after I found her with another man in our home- I don't know if that would help my case at all in court but the fact is I would have never given up my daughter by choice. Her mother and I were never married as well.

Calculation of Support: Child Support Half-Time Dad