Question

A man weighing 150 kg wants to lose 30 kg. What % of his body weight would he
lose?

Answer 1

Change in Percentage = 30/150*100 = 20%

Answer 2

Actual Weight = 150 kg
Wants to lose = 30 kg
% of body weight he would lose = {(30/150)*100}%
                                               = 20%