Percent Change

Front

What is percent change?

Back

Percent change is a way to express a change in 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 decrease?

Back

To calculate percent decrease, use the formula: ((Old Value - New 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

What is the percent change if a population decreases from 580 to 350?

Back

Percent change = ((580 - 350) / 580) x 100 = 39.66% (approximately 40% decrease).

Front

What is the percent change if speeding tickets decrease from 72 to 36?

Back

Percent change = ((72 - 36) / 72) x 100 = 50% decrease.

Front

What is the percent change if a video game level time decreases from 32 minutes to 28 minutes?

Back

Percent change = ((32 - 28) / 32) x 100 = 12.5% decrease.

Front

What is the percent change if the deer population decreases from 680 to 410?

Back

Percent change = ((680 - 410) / 680) x 100 = 39.71% (approximately 40% decrease).

Front

What is the percent change if bee hives decrease from 276 to 125?

Back

Percent change = ((276 - 125) / 276) x 100 = 54.7% (approximately 55% 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 quantity.

Front

What does a positive percent change indicate?

Back

A positive percent change indicates an increase in the quantity.