Hello Rebecca Moll,
I also see body fat percentages that are all over the place; because, everyone is really very different with their lifestyle and diet choices.
The elite athletes do not have much change, even into their seventies.
Generally, the aging process (50 and older) moves the fat from just under the skin to more internal. This is the reason we hear our elders mention that they need cushioning when choosing furniture. Then that internal fat increases while lean muscle mass decreases.
Therefore, the body fat percentage will increase, even if we may not see it.
Is this what you have noticed?