Question: how to calculate usual body weight percentage?
Answer: HLTH 643 IBW = 106lbs + 6(10) = 166lbs %IBW = Current weight/ideal weight x 100 154lbs/160lbs x 100 = 96.25% %UBW = Current body weight/UBW x 100 154lbs/165lbs x 100 = 93.3% %UBW change = % UBW – 100 93.33333 – 100 = 6.7% Formula: Body Mass Index = Weight (lb)/[height(in)]2 x 703 154/ (70) 2 x 703 = 154/4900 x 703 = .