# How do you find the percent change given the original number is 25 and new number is 10?

Mar 21, 2017

#### Answer:

Percentage change: color(green)(-60%)

#### Explanation:

The change from $25$ to $10$ is $\left(10 - 25\right) = \textcolor{m a \ge n t a}{- 15}$
(change is always measured as "new value" minus "original value").

As a percentage of the original value, $\textcolor{m a g \ne t a}{- 15}$ is
color(white)("XXX")color(magenta)(-15)/25 xx100% =color(green)(-60%)