Calculating cals from LBM or BMR?

[weight]

im like 205, assuming no more than 15% bf, was wondering most people if they hit there BMR cals, or a few hundred less or more than there bmr? ive heard a little more to insure no muslce loss, but some say to cut, and another said to do maintanice of your LBM which i think is approx a few hundred less than BMR maintenace? if my caliper says 15mm on the lower abdomen area beneath the beely button to the side a little , what approximate bodyfat reading does that give you