## Percent Decrease

## Formative Assessment

# Summary of the Math: Percent Decrease

**Read and Discuss**

- A percent can describe a change in a value that decreases. Such a percent is called a
*percent decrease*. - If an amount decreases by
*x*%, you can multiply that amount by (100% −*x*%) to determine the final amount. - For example, if the percent decrease is 5% and the original amount is
*m*, then 100 − 5 = 95% = 0.95

0.95*m*= the final amount

## Hint:

Can you:

- Explain how to calculate a percent decrease?
- Give examples of situations that involve percent decrease?
- Describe how to use a table to organize the information in a percent decrease problem?