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A jacket's price rises by 10% in year 1 and then falls by 10% in year 2. The net change over both years is
A1% decrease
BCannot be determined
CNo change
D1% increase
Answer & Solution
Correct answer: A. 1% decrease
Let original = 100. After year 1: 110. After year 2: 110 × 0.9 = 99. Net change = 1% decrease. Successive percentage changes are NOT additive — formula: a + b + ab/100.
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