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. If the result is positive, it indicates a percent increase.

Front

How do you calculate percent decrease?

Back

To calculate percent decrease, use the formula: ((Old Value - New Value) / Old Value) x 100. If the result is positive, it indicates a percent decrease.

Front

What is the formula for finding the new value after a percent increase?

Back

New Value = Old Value + (Old Value x Percent Increase) / 100.

Front

What is the formula for finding the new value after a percent decrease?

Back

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

Front

If the cost of an item increases from $50 to $65, what is the percent increase?

Back

Percent Increase = ((65 - 50) / 50) x 100 = 30% increase.

Front

If a student scores 80 on a test and then scores 90 on the next test, what is the percent increase in their score?

Back

Percent Increase = ((90 - 80) / 80) x 100 = 12.5% increase.

Front

If a car's value decreases from $20,000 to $15,000, what is the percent decrease?

Back

Percent Decrease = ((20,000 - 15,000) / 20,000) x 100 = 25% 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.

Front

If a product originally costs $100 and is now on sale for $75, what is the percent decrease?

Back

Percent Decrease = ((100 - 75) / 100) x 100 = 25% decrease.