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

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

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

Front

How do you calculate percent decrease?

Back

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

Front

If a TV set's price decreases from $500 to $413, what is the percent decrease?

Back

17.4%.

Front

If Susie's hourly wage increases from $8.75 to $9.50, what is the percent increase?

Back

9% Increase.

Front

If a purse originally costs $25 and is now $15, what is the percent decrease?

Back

40% Decrease.

Front

If the number of people on a bus trip increases from 32 to 45, what is the percent increase?

Back

41%.

Front

If Mrs. Mroc's class size increases from 35 to 42 students, what is the percent change?

Back

20% Increase.

Front

What does a 40% decrease mean in terms of original price?

Back

It means the new price is 60% of the original price.