You and I are in the same state. I believe statutory CS is 20% for one child, 28% for two or more. Nothing wrong with contacting a lawyer to get your ducks in a row. Initial consultations are usually free. I advise a female lawyer.
Since you aren't at the point of starting the process, continue DB'ing as best you can. If and when you get to that point, give me a shout. I'm no expert, but I've been down this road. 3-1/2 yrs from the bomb to the D being final.
Incidentally, my D11 is a well adjusted, happy, straight A student and accomplished gymnast & violinist. In spite of all we went through, my exW and I were always committed to raising our D11 the best we could and put our issues aside for her sake and now have a very good co-parenting R.
Me45 (D11 from 1st marriage) W43 (D20 & D16 from 1st marriage) M4 Bomb 6/16/09 W wants D W moved out 8/29/09 I sent her D paperwork 9/25/09...I'm done