Percent of Change

Front

What is Percent of Change?

Back

Percent of Change is a way to express how much a quantity has increased or decreased in relation to its original amount, calculated as (New Value - Original Value) / Original Value x 100%.

Front

How do you calculate Percent Increase?

Back

To calculate Percent Increase, use the formula: ((New Value - Original Value) / Original Value) x 100%.

Front

How do you calculate Percent Decrease?

Back

To calculate Percent Decrease, use the formula: ((Original Value - New Value) / Original Value) x 100%.

Front

If Joshua's body temperature increased from 98.5ºF to 101.5ºF, what is the percent increase?

Back

3%

Front

If the population of a town increased from 82,000 to 87,000, what is the percent increase?

Back

6%

Front

If you wrote 5 pages yesterday and 18 pages today, what is the percent increase in productivity?

Back

260%

Front

If the number of unemployed students decreased from 2,867 to 2,053, what is the percent decrease?

Back

28%

Front

If gas prices decreased from $3.89 to $2.99, what is the percent decrease?

Back

23%

Front

What is the formula for finding the original value when given the new value and percent change?

Back

Original Value = New Value / (1 + Percent Change) for increase, or Original Value = New Value / (1 - Percent Change) for decrease.

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.