Percents of Increase and Decrease

A percent decrease is the percent change where something loses value, or goes_________

• change

• percent

• up

• down

Last school year the enrollment of E.O Green junior high school was 1275 students. This year the enrollment is 1350. Find the percent of change. Round your answer to the nearest whole percent AND include whether it is an increase or a decrease.

Find the percent of change from 10 inches to 14 inches.

Find the percent of change from 48 to 36.

Find the percent of change from $52 to $125. Round your answer to the nearest whole percent.

Sam had 9 puppies. After giving some away, Sam had 4 puppies left. What is the percent change in the number of puppies? Round to nearest whole percent if necessary.

• 56% decrease

• 125% decrease

• 56% increase

• 125% increase

Hank is buying a shirt that originally cost $25.00. It was on sale two weeks ago for 10% off. Today, it is an additional 20% off the original price. How much is the shirt now?

Lisa's little brother weighed 8 pounds when he was born. He now weighs 36 pounds. What is the percent increase in the boy's weight?

• 350%

• 4%

• 40%

• 78%

It costs a florist $14.50 to grow a dozen roses. She sells a bouquet of a dozen roses for $24.99. What is the markup (percent increase) to the nearest percent?

• 72%

• 42%

• 172%

• 58%

Last year the enrollment at Clark Middle School was 465 students. This year the enrollment is 525 students. What is the percent of increase? Round to the nearest percent.

• 113%

• 100%

• 13%

• 87%