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Formula for calculating % weight loss:
% weight loss = ((IW - AW)/IW) * 100
IW = initial weight or weight at begining of weight loss program
AW = actual weight or weight at end of weight loss program
IW = 250 lb.
AW = 200 lb.
% weight loss = ((250 - 200) / 250) *100
= (50/250) *100
= .20 * 100
= 20 % weight loss
What can I do?