Question
Download Solution PDFA number is increased by 10% and the increased number is decreased by 20%. Find the net percentage of change in the original number.
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFGiven
A number is increased by 10% and the increased number is decreased by 20%
Formula used
Total percentage change = [a + b + ab/100]%
Calculation
Here a = 10 and b = – 20, a negative sign shows the percentage decrease
Percentage change = 10 – 20 – (10 × 20) / 100
= - 10 - 2
= –12 %
∴ The number will decrease by 12%
Last updated on Jul 8, 2025
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