How to calculate weight loss ADVERTISEMENT 1.21K viewsApril 5, 2012 0 Laura April 5, 2012 0 Comments We are forming teams for a weight loss challenge and want to know how to clculate pounds lost at weigh in like on biggest loser because some people are smaller. Thank you so much! 10 Answers ActiveVotedNewestOldest 0 Jason0 Posted 0 Comments Calculate Body Fat % –> Divide by total body mass. = Fat Mass TEAM – Total Fat Mass PRE END OF CHALLENGE TEAM – Total Fat Mass PRE – Total Fat Mass POST = FAT MASS LOST Fuel the Movement, JM You are viewing 1 out of 10 answers, click here to view all answers. Register or Login