Question

What single percentage change is equivalent to a 11% decrease followed by a 21% increase?

Answer 1

7.69% increase

Explanation:

Let our initial number be 100

11% decrease will be;

100- 0.11(100) = 100-11 = 89

A 21% increase will be;

89 + 21% of 89

89 + 0.21(89)

= 107.69

difference from the starting is 107.69 - 100 = 7.69

The percentage is 7.69% increase