Percent Increase, Decrease, and Error

The temperature in one day goes from 10^o to 15^o. What is the percent change?

• 50% increase

• 50% decrease

• 33% increase

• 33% decrease

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%

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%

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%

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%