# Question #0b870

Dec 15, 2016

There was a 25 percent or 25% increase in sales.

#### Explanation:

The formula for determining the percent change in two values over time is:

$p = \frac{N - O}{O} \cdot 100$

Where $p$ is the percent change, $N$ is the New Value and $O$ is the Old Value. In this problem we are given the New Value (60) and the Old Value (48) which we can substitute into the formula to calculate $p$:

$p = \frac{60 - 48}{48} \cdot 100$

$p = \frac{12}{48} \cdot 100$

$p = \frac{1}{4} \cdot 100$

$p = \frac{100}{4}$

$p = 25$