P90X Phase II

I'm entering Phase II of my second round of P90X, and here are my results so far.

Body Fat: 9.4%
Weight: 127lbs
Chest: 32.75'
Waist: 28.25'
Hips: 36.5'
Thigh: 19.25/19.5'
Arm: 12.5/13

I think on one of the body fat calculations, I miss calculated something. I don't believe I drastically decreased my body fat that much in just 1 month.

*Update
I figured I mistakenly calculated my 'before' body fat percentage.