# Rick weighed 158 pounds during wrestling season. Now that the season is over Rick weighs 188 pounds. How do you find the percent increase?

Dec 6, 2016

Rick had a 19.0% increase in weight rounded to the nearest tenth of a percent.

#### Explanation:

To find the percent change over time you use the formula:

$p = \frac{N - O}{O} \cdot 100$ where $p$ is the percent change, $N$ is the New Value and $O$ is the Old Value. In this problem we are provided the New Value (188) and the Old Value (158). We can substitute this into the formula and calculate the percent change, $p$:

$p = \frac{188 - 158}{158} \cdot 100$

$p = \frac{30}{158} \cdot 100$

$p = \frac{3000}{158}$

p = 19.0% rounded to the nearest tenth