Question
A number is initially increased by 30% and then reduced
by 25%. What is the overall percentage change in the number?Solution
Let the original number be '100m' Final number = 100m X 1.3 X 0.75 = 97.5m Therefore, required percentage decrease = [(100m - 97.5m) ÷ 100m] X 100 = (2.5/100) X 100 = 2.5%
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