Question
A number undergoes a 35% increase, followed by a 20%
decrease. What is the net percentage change in the original number?Solution
ATQ,
Let the number be '100b'
Final number = 1.35 × 0.80 × 100b = '108b'
Required percentage increase = [(108b - 100b) ÷ 100b] × 100 = 8%
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