You enter a weight loss challenge game and manage to lose 11% of your body weight. For the final weigh in you are forced to wear clothes that add 2% to your weight. What percentage of weight loss is measured at the final weigh in?
Choose the correct answer.
A) 13 %  B) 9.22 %  C) 9 %  D) 14 %  E) 12 %

Rationale: "( 100 % - 11 % ) * ( 100 % + 2 % ) = 0.89 * 1.02 = 9.22 % the weigh in records your weight loss at 9.22 % ! the answer is b"
Answer: B