last year the chess club had 20 members this year the club has 15 members fint eh percetn of change an state whether the per

do it yourself

To find the percent change in the number of members in the chess club, you can use the following formula:

Percent Change = [(New Value - Old Value) / Old Value] * 100

Let's calculate the percent change step by step:

1. Old Value: The number of members in the chess club last year was 20.
2. New Value: The number of members in the chess club this year is 15.

Now, let's substitute these values into the formula:

Percent Change = [(15 - 20) / 20] * 100

Simplifying further:

Percent Change = [-5 / 20] * 100

Percent Change = -0.25 * 100

Percent Change = -25%

Therefore, the percent change in the number of members in the chess club is -25%, which indicates a decrease of 25%.