Question

A towns population went from 25,800 to 42,600 in 15 years. What was the percent of the change?

Answer 1

The percent change was 65.1% rounded to the nearest tenth.

Explanation:

The formula for percent change over a time period is:

`p = (N - O)/O * 100` where `p` is the percent change, `N` is the new value and `O` is the old value. In this case we are given the Old Value (25,800) and the New Value (42,600) so we can substitute these into the formula to calculate `p`, the percent change:

`p = (42600 - 25800)/25800 * 100`

`p = 16800/25800 * 100`

`p = 1680000/25800`

`p = 65.1` rounded to the nearest tenth.