I don't think the 10% rule works for me, that would put me at 8% which for a female is very low especially when I haven't been dieting! Heck I wish I was 8%, I'd be almost ready for competing!
I think I'm about 14-16%.
The thing that confused me was that I lost 5 lbs with DNP and I know DNP removes mostly fat yet my bf reading didn't change on the scale.