Converting Dec/Frac/%
Percent Error
Tax/Tip/Markup
Discount/Markdown
Commission
100

Convert 25% to a decimal

0.25

100

A chef predicted that a recipe would make 12 cookies, but the actual yield was 10 cookies. Calculate the percent error of the chef's prediction.

20%

100

A bookstore buys a novel for $8 and sells it at a markup of 40%. What is the selling price of the novel?

$11.20

100

Sarah is buying a backpack priced at $50. The store is offering a 20% discount. How much will Sarah pay for the backpack after the discount?

$40

100

Sasha sells handmade candles.  She earns a 10% commission on every sale.  If she sold $450 worth of candles this month, how much commission did she earn?

$45

200

Convert 65% to a fraction

65/100

200

A weather forecaster predicted it would rain 3 inches in a day, but the actual rainfall was only 2.5 inches. Determine the percent error of the prediction.

20%

200

You went to lunch with friends and your bill was $52.50.  You want to leave a 20% tip.  How much will you pay in total?

$63

200

Maria bought a pair of shoes originally priced at $60. After a 5% discount, what is the final price she pays?

$57

200

A shoe company offers their sales representatives a 12% commission on sales. If a representative sold $1,250 worth of shoes, calculate their commission.

$150

300

Convert 0.1 to a percent

10%

300

During a sale, a customer estimated that they would save $25 on a purchase. However, they only saved $20. What is the percent error in the customer's estimation?

25%

300

At a restaurant, your meal costs $60. You decide to leave a 15% tip. How much tip will you leave?

$9

300

A home appliance is listed at $600 with a store offering a 25% discount on all appliances. Calculate the discounted price of the appliance.


$450

300

An art dealer sells a painting for $15,000 and earns a commission of 6%. How much money does the art dealer make from this sale?

$900

400

Convert 32.5/100 to a percent

32.5%

400

A scientist guessed that a chemical solution would weigh 150 grams, but the actual weight was 145 grams.  Calculate the percent error.  Round to the nearest whole number.

3%

400

You went to dinner with friends and the bill came to $85.  There is a sales tax of 7%.  Then, you want to leave an 18% tip.  How much did you spend in total?

$107.32

400

Jason is paying for dinner tonight at Applebees.  The bill was $74.30.  Jason has a coupon for 15% off.  How much did he pay after the discount?

$63.15

400

A travel agent books a package trip worth $3,500. The agent earns a 7.5% commission. How much does the agent make from this booking?

$262.50

500

Convert 7.5% to a decimal

0.075

500

An artist assumed a project would require 20 hours to complete, but it only took 18 hours.  What is the percent error in the artist's estimation?  Round to the nearest whole number.

11%

500

A bike shop purchases helmets for $25 each. They apply a 50% markup. The sales tax is 9%, what is the total price of the helmet including tax?

$40.88

500

A bike store is having a sale this weekend.  Normally, a bike sells for $350.  The store is having a 30% off sale.  Trey has a coupon for an extra 15% off.  How much will Trey spend on the bike?

$208.25

500

Dana works at a car dealership and receives a $500 base salary every week plus a 5% commission on all cars sold. If she sold cars totaling $30,000 this week, what is her total earnings for the week?

$2,000