The only really accurate way to measure body fat is in a tub of water, where you're hooked up to machines that check the lean mass percentage. This is a very expensive test, and is rarely performed for people who are not professional. The scales you relate can give you a general idea, but I wouldn't hold much stock in the actual figures. Get the idea, and try to become healthier, keep to a regular diet and workout schedule. Check for the trend of the numbers rather than the actual figures.
The search for people who can answer your question continues for as long as needed - until you find the answer you were looking for.
When an answer is posted by someone who was invited (byYedda or by yourself) to answer your question, their answer is marked with a yellow "invited by Yedda".
To be invited to answer other people's questions in your areas of knowledge and interest, be sure to list your favorite topics:
» My Settings My Topics.
Of course, the more helpful your answers are, the more likely you are to be invited to future questions...