Percent Increase and Percent Decrease

Front

What is percent increase?

Back

Percent increase is a measure of how much a quantity has grown relative to its original amount, expressed as a percentage.

Front

What is percent decrease?

Back

Percent decrease is a measure of how much a quantity has shrunk relative to its original amount, expressed as a percentage.

Front

How do you calculate percent increase?

Back

To calculate percent increase, subtract the original amount from the new amount, divide by the original amount, and multiply by 100.

Front

How do you calculate percent decrease?

Back

To calculate percent decrease, subtract the new amount from the original amount, divide by the original amount, and multiply by 100.

Front

If a quantity increases from 50 to 65, what is the percent increase?

Back

The percent increase is 30%.

Front

If a quantity decreases from 80 to 60, what is the percent decrease?

Back

The percent decrease is 25%.

Front

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

Back

New Amount = Original Amount + (Original Amount × Percent Increase) / 100.

Front

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

Back

New Amount = Original Amount - (Original Amount × Percent Decrease) / 100.

Front

A shirt costs $40 and is on sale for 25% off. What is the sale price?

Back

The sale price is $30.

Front

A bike is regularly priced at $200, but it is on sale for 15% off. What is the sale price?

Back

The sale price is $170.