Percent Increase and Decrease with Equations

The average number of shirts sold in the shop was 285 every day in summer. As the temperature was lower and lower, the average number of shirts decreased to 114 every day. What was the percentage decrease of in the average number of shirts sold in the shop?

• 60%

• 40%

• 150%

• 171%

The inventory of single houses is 980 in the housing market last year. After some of them were sold, there are 637 single houses left. What was the percentage decrease in the number of single houses?

• 65%

• 35%

• 53%

• 34%

What is the % of decrease from 35 to 15?

• 40% decrease

• 45% decrease

• 10/25

• 2/4

Decrease 500 by 30%

• 470

• 350

• 499.70

• 150

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%

Find the new amount given the original amount and the percent of change.
340 pages; 20% decrease 

• 320 pages

• 240 pages

• 272 pages

• 360 pages

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%

• 10%

• 11%

• 50%

Lacey bought a new purse that originally cost $25 and is on sale for $15. Find the percent of change in the price in the purse.

• Decrease of 40%

• Decrease of 10%

• Decrease of 30%

• Decrease of 20%

Cody weighed 110 pounds when he started 6th grade but now weighs 150 pounds as a 7th grader. What is the percent of increase in his weight?

• 36%

• 26%

• 33%

• 38%

The original price of a camera was $50 and the sale price this week is $38. What is the percent of change in the price of the camera?

• 24%

• 12%

• 20%

• 22%