Percentages: Increase or Decrease

Front

What is a percent decrease?

Back

A percent decrease is a measure of how much a quantity has decreased in relation to its original value, expressed as a percentage.

Front

How do you calculate percent decrease?

Back

Percent Decrease = ((Original Price - Sale Price) / Original Price) x 100.

Front

What is a percent increase?

Back

A percent increase is a measure of how much a quantity has increased in relation to its original value, expressed as a percentage.

Front

How do you calculate percent increase?

Back

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

Front

If a scooter's price decreases from $65.50 to $52.40, what is the percent decrease?

Back

20%.

Front

If a purse's price decreases from $25 to $15, what is the percent decrease?

Back

40%.

Front

What is the percent change when the original value is 35 and the new value is 70?

Back

100% increase.

Front

If the number of teachers increases from 24 to 30, what is the percent increase?

Back

25% increase.

Front

If the original price is $80 and the new price is $52, what is the percent decrease?

Back

35% decrease.

Front

What does it mean if a value increases by 100%?

Back

It means the new value is double the original value.