Question
A quantity is first increased by 60% and then decreased
by 25%. Calculate the overall percentage increase or decrease.Solution
ATQ,
Let the quantity be 100b
Final quantity = 1.60 Γ 0.75 Γ 100b = 120b
Overall percentage change = [(120b - 100b) Γ· 100b] Γ 100 = 20% increase
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