Percent Increase and 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

How do you calculate percent increase?

Back

Percent Increase = ((New Value - Original Value) / Original Value) x 100.

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 decrease?

Back

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

Front

If a price increases from $20 to $25, what is the percent increase?

Back

Percent Increase = ((25 - 20) / 20) x 100 = 25%.

Front

If a price decreases from $50 to $30, what is the percent decrease?

Back

Percent Decrease = ((50 - 30) / 50) x 100 = 40%.

Front

What does a 20% discount mean?

Back

A 20% discount means that the price is reduced by 20% of the original price.

Front

If a shirt costs $40 and is on sale for 20% off, what is the sale price?

Back

Sale Price = Original Price - (20% of Original Price) = $40 - ($40 x 0.20) = $32.

Front

What is the formula for calculating the final price after a percent increase?

Back

Final Price = Original Price + (Percent Increase x Original Price).

Front

What is the formula for calculating the final price after a percent decrease?

Back

Final Price = Original Price - (Percent Decrease x Original Price).