Percent Increase, Decrease and Error

Mrs. Tagliaferro had 27 students in her class last year and this year she had 30 students in her math class. What is the percent of change?

• 24%

• 20%

• 11%

• 50%

A microwave originally costs $96, but is marked up to a price of $115.20. What is the percent increase?

• 20% Increase

• 17% Increase

• 20% Decrease 

• 17% Decrease

Ms. Brown estimated 70 students would try out for the Cross Country team. This year, only 63 students tried out. What was her percent error?

• 11%

• 50%

• 12%

• 1%

Sally went to the clearance rack at a department store and found a shirt she wanted to buy.  The shirt was $36.00 and is on sale for $24.00.  What is the decrease in price?

• 33%

• 67%

• 50%

• 34%

The regular price of a scooter is $65.50. It is on sale for $52.40. What is the percent decrease from the regular price to the sale price of the scooter? 

• 35%

• 25%

• 30%

• 20%

The number of people signed up for a bus trip increased from 32 to 45. What is the percent increase? Round to the nearest percent.

• 52%

• 41%

• 42%

• 45%

Mrs. Ciampa had 27 students in her class last year and this year she had 30 students in her math class. What is the percent of change?

• 24%

• 20%

• 11%

• 50%

Find the percent increase. Round to the nearest percent.
From $5 to $8 

• 40%

• 60%

• 55%

• 65%

Sales of the Xbox One increased from 10,000 to 18,500 in November. What was the percent increase?

• 8.5%

• 45.9%

• 85%

• 85.8%

Find the Percent of Change.  Round to nearest Percent. 
From 45 mph to 24 mph

• 47% Increase

• 88% Increase

• 88%  Decrease

• 47% Decrease