Question

What single percentage change is equivalent to a 11% decrease followed by a 13% decrease?

Answer 1

77.43% decrease

Explanation:

A decrease of 11% = (100 - 11)% = 89% =
`(89)/(100)` = 0.89

A decrease of 13% = (100 - 13)% = 87% =
`(87)/(100)` = 0.87

A 11% decrease followed by a 13% decrease has an overall change of

0.89 × 0.87 = 0.7743 × 100% = 77.43%