Question

A) By how many % did 40 increase to 70?

B) By how many % did 70 decrease to 40

Answer 1

A) 75% increase

B)42.8571% decrease

Explanation:

The formula to do this is to subrtact the final value-starting value then divide by the starting value and finaly multiply by hundred

it should look like this

`(finalvalue-starting value)/(starting value) *100`

Answer 2

A. by 3 percent

B. by 3 percent