Percentage – Example 5

Table of Contents

  • Example 1
  • Example 2
  • Example 3
  • What’s Next?

In the previous segment, we had looked at Percentage Change to get back to the Original Amount. In this segment of the chapter ‘Comparing Quantities’, we will see how to find the Percentage Change to get back to the Original Amount.

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    Example 1

    Q. A person’s salary was reduced by 30%. What percentage should be added to get

    back his original salary? Solution:

    Let the person’s original salary be ₹ 100.

    ∴ 30% of his original salary = 30 × 100 = ₹ 30

    100

    ∴ His current salary = 100 – 30 = ₹ 70

    ∴ Percentage increase = ????????

    ??????? ??????

    × 100

    = 30 × 100 = 42.8%

    70

    ∴ There should be an increase of 42.8% so that his current salary gets back to his original salary.

    Example 2

    Q. A person’s salary was reduced by 50%. What percentage should be added to get

    back his original salary? Solution:

    Let the person’s original salary be ₹ 100.

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