25-30? Ouch. I need to cut more than I planned
Yeah that sounds about right. Have a look around for some more methods of using the callipers. I have done the 3 point (chest, stomach, thigh) on myself, it was probably not very accurate but it fit roughly with what more knowledgeable people around me thought.
You also might want to think about going a little lower than 200lb, you will probably still be around 20% ish BF at that weight.
How tall are you?