Percent of Change Percent Error

In one year Angelica’s height went from 60 inches to 63 inches. What was the percent of increase in Angelica’s height?

• 0.05%

• 4%

• 4.8%

• 5%

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 percent of the decrease?

• 33%

• 67%

• 50%

• 34%

Mary lost 30 pounds.  Before her diet she weighed 180 pounds.  What is the percent of change?

• 17% Decrease

• 18% Decrease

• 19% Decrease

• 20% Decrease

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%

Find each percent decrease. Round to the nearest percent.
From $80 to $64 

• 35%

• 10%

• 20%

• 25%

Valerie's jewelry box measures 6.5 cm x 10.8 cm x 5.5 cm. Find the percent error in calculating its volume. (Round each volume to the nearest tenths)

• About 0.21%.

• About 2.1%.

• About 3.2%.

• About 2.8%.

Buying a birthday card, you think the price is $4.50, but the actual price is $4. What is the percent of error?

• 50%

• 0.5%

• 12.5%

• 0.125%

Mrs. Carmen's math class has 24 students, but she thought she only had 20 students. What is her percent of error?

• 4%

• 20%

• 17%

• 16 2/3%

Sam thinks the cost of the book is $50, but actually, it's $56. What is Sam's percent of error?

• 10%

• 20%

• 2%

• 8.3%

Mary thought the umbrella was selling for $60. When she checked out, it cost $50. What is her percent of error?

• 10%

• 20%

• 16 2/3%

• 8.3%