Converting
Markup & Discounts
Percent Proportion
Percent Error
"After" Problems
100

0.31 as a percent

31%

100

A toy costs $10. It is on sale for 20% off. What is the discount? 

$2

100

What percent of 20 is 5?

25%

100

You estimate a book weighs 5 pounds, but it actually weighs 4 pounds. What is the percent error?

25%

100

Party City had its final closing sale in February. A birthday banner costs $4.99 after a 75% discount is taken. What was the original price?

$19.96

200

43% as a decimal

0.43

200

A t-shirt costs $19.95. It is 20% off. What is the discounted price of the shirt?

$15.96

200

What is 25% of 40?

10

200

You estimate your friend's height to be 60 inches, but she is actually 62 inches tall. What is the percent error?

3.23%

200

During a Black Friday sale, AirPods cost $87 after a 90% discount was taken at the register. What was the original price?

$870

300

3/5 as a decimal

0.6
300

A pair of shoes originally costs $120. During a sale, they are 15% off. What is the final price?

$102

300

60 is what percent of 120?

50%

300

You estimate the temperature to be 70°F, but it's actually 68°F. What is the percent error?

2.94%

300

At Target, a weighted blanket is on sale for $28 after a 65% discount was taken. What was the original price?

$80

400

43.7% as a decimal

0.437

400

You want to purchase a North Face bag for $50. The store is having a storewide sale of 37% off purchases. What is the sale price of the bag?

$31.50

400

Emma read 25% of her 40-page book. How many pages did she read?

10 pages

400

You estimate that a science experiment will take 52 minutes, but it actually takes 47.5 minutes. What is the percent error?

9.47%

400

A winter coat is being sold for $48 after a 60% discount was taken. What was the original price of the coat?

$120

500

232/500 as a percent

464%

500

A store buys a microwave for $125. They mark it up by 36%. What is the selling price?  

$170

500

Sophia completed 75% of her homework. She had 20 assignments. How many assignments did she complete?

15 assignments

500

You estimate that the distance between two cities is 250 miles, but the actual distance is 237.8 miles. What is the percent error?

5.13%

500

A pair of shoes is on sale for $36 after a 40% discount was taken. What was the original price of the shoes?

$60