# How do you calculate the percent change of 14.1 and 15.8 ?

##### 2 Answers

See a solution process below:

#### Explanation:

The formula for calculating the percent change in a value between two points in time is:

Where:

Substituting and solving for

The percent change is:

#### Explanation:

To calculate percent change, use the formula

If the top is negative, then you have a percent decrease. If the top is positive, then you have a percent increase.

Assuming 14.1 is the old number and 15.8 is the new number, we can calculate