Percentage – Example 4

Table of Contents

• Finding the Percentage Change to get back to the Original Amount – Example
• What’s Next?
• Related Playlists

In the previous segment, we had a look at finding 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.

Finding the percentage change to get back to the original amount

– Example

Q. A person’s salary was reduced by 20%. So What percentage should be added to get back his original salary?

Solution:

Let the original salary be ₹ 100.

20% of his original salary = ²⁰ × 100 = ₹ 20

100

∴ the current salary = 100 – 20

= ₹ 80

∴ The increase in salary required so as to get back the original salary = 100 – 80 = ₹ 20

Percentage increase = ^????????

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

× 100

= 20 × 100 = 25%

80

Thus, there should be an increase of 25% to his current salary to get back to his original salary.

What’s next?

In our next segment of Class 07 Maths, we will see how to find the Percentage change to get back the original amount.