Percent Change

Front

What is percent change?

Back

Percent change is a way to express a change in a quantity as a percentage of the original amount. It is calculated using the formula: ((New Value - Old Value) / Old Value) x 100.

Front

How do you calculate percent increase?

Back

To calculate percent increase, use the formula: ((New Value - Old Value) / Old Value) x 100.

Front

How do you calculate percent decrease?

Back

To calculate percent decrease, use the formula: ((Old Value - New Value) / Old Value) x 100.

Front

If a class has 25 students and 2 are absent, what is the percent of change in attendance?

Back

8% (calculated as (2/25) x 100).

Front

What is the percent decrease from 90 points to 45 points?

Back

50% (calculated as ((90-45)/90) x 100).

Front

If John grew from 4 feet 11 inches to 5 feet 2 inches, what is the percent increase?

Back

5% (calculated as (3 inches / 60 inches) x 100).

Front

Santos walked 5 miles in 1 hour 10 minutes and now walks it in 55 minutes. What is the percent change in time?

Back

21% (calculated as ((70-55)/70) x 100).

Front

Mary decreased her mile walk time from 30 minutes to 24 minutes. What is the percent of decrease?

Back

20% (calculated as ((30-24)/30) x 100).

Front

What does a percent change of 0% indicate?

Back

A percent change of 0% indicates that there has been no change in the value.

Front

What is the formula for calculating percent change?

Back

Percent Change = ((New Value - Old Value) / Old Value) x 100.