Grade 7 Math Flashcard on Percent Increase and Decrease

Front

What does a percent increase describe?

Back

An increase in a quantity as a percentage of the starting amount.

Front

If a quantity increases by 15%, what percent of the original amount is it now?

Back

115%.

Front

What percent of the original amount do you have after a 40% increase?

Back

140%.

Front

What is the price of the shirt after a 20% discount from $18.50?

Back

$14.80.

Front

What is the total percent off if shirts are on sale for 20% off each and you buy two?

Back

Cannot be simply added.

Front

Define percent decrease.

Back

A reduction in a quantity expressed as a percentage of the original amount.

Front

How do you calculate a percent increase?

Back

Add the percent increase to 100% and multiply by the original amount.

Front

How do you calculate a percent decrease?

Back

Subtract the percent decrease from 100% and multiply by the original amount.

Front

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

Back

New Amount = Original Amount × (1 + Percent Increase).

Front

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

Back

New Amount = Original Amount × (1 - Percent Decrease).