How do you identify the percent of change as an increase or a decrease 75 people to 25 people?

Question

15890 views around the world

You can reuse this answer
Creative Commons License

Answer 1 · 2017-03-27T22:29:55

See the entire solution process below:

The formula for calculating the percent of change between two values is:

$p = (N - O)/O * 100$

Where:

$p$ is the percent of change/

$N$ is the New Value, $25$ people for this problem

$O$ is the Old Value, $75$ people for this problem

Substituting a calculating $p$ gives:

$p = (25 - 75)/75 * 100$

$p = (-50)/75 * 100$

$p = (-5000)/75$

$p = -66.7$ rounded to the nearest tenth.

There was a $66.7%$ $color(red)(decrease)$ in the number of people.