Question
Two successive increases of 15% each, is by what
percentage more than the two successive decreases of 12% each? (Rounded off to 2 decimal places)Solution
Let initial value = 100 Two 15% increases: 100 × 1.15 × 1.15 = 132.25 Two 12% decreases: 100 × 0.88 × 0.88 = 77.44 % more = (132.25 − 77.44) ÷ 77.44 × 100 = 54.81 ÷ 77.44 × 100 ≈ 70.78%
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