Percent Equation
Percent of Change
Tax, Tips, & Retail Price
Discount & Sale Price
Total Cost
100

What is 25% of 100?

(0.25)(100) = 25

100

What is the percent of change:

From 45 books to 68 books

(68-45)÷ 45

23 ÷ 45

51% increase

100

A shoe store marks up its merchandise by 8%. What was the selling price of a pair of shoes whose wholesale price is $24.50?

24.50 + (0.08)(24.50) 

$26.46

100

The seater Shack is offering a 20% discount on sweaters. If the regular price of a sweater is $15.00, what is the discount?

15(0.20)

$3.00

100

What is the total cost with sales tax?
Price $17.95
Tax 6%

$19.03

200

What is 1/8 of $189?

$23.625

200

What is the percent of change:

From 32 movie tickets to 15 movie tickets

(32 - 15) ÷  32

17 ÷  32

53% decrease

200

Mr.Quick bought a new computer system. The regular price was $1580,but he got 15% discount. How much did he pay after discount?

1580 - (0.15)(1580)

$1343.00

200

A bicycle that usually sells for $230 is on sale for 25% off. Find the sale price.

230 - 230(0.25)

$172.50

200

Jessica is wanting to buy a $10.00 box of candy. The sales tax is 5%. How much is the total for the candy?



$10.50

300

A student earned a grade of 80% on a math test that had 20 problems. How many problems on this test did the student answer correctly? 

(round to the nearest whole number)

80% of 20 questions

(0.8)(20) = 16 questions

300

A parka that sold for $65 is marked up to $70.20. What is the percent of markup? 

(70.20 - 65) ÷ 65

5.20 ÷  65

8% markup

300

Ms.Acton spent $205.60 at Target. If the sales tax is 6%, what was her final bill?

205.60 + 205.60(0.06)

$217.94


300

Macy is having a one-day 35% off special. If Sara bought $124.50 worth of items, what would the final bill total after applying the discount of 35%?

124.50 - 124.50(0.35)

$80.93

300

Mr. Lucas bought a new lounge chair for his game room. The one he chose was $425. He had to pay a sales tax of 8.2%. What was the amount of sales tax he paid on the chair?

$ 24.90

400

A metal bar weighs 8.15 ounces. 93% of the bar is silver. How many ounces of silver are in the bar? 

(round to the nearest thousandth)

(0.93)(8.15) = 7.580
400

Marco buys a certain brand of shampoo from a supplier at $8.55. He sells it to his friend at a markdown of 25%. What would the markdown be?

8.55(0.25) = $$2.14

400

 Ms. Stoner purchased a new computer for $1,150 at the Apple Store.  If sales tax is 7.5%, what was the total of her purchase?

1150 + 1150(0.075)

$1236.25

400

Megan bought beads for $9.95.  She received a 10% discount.  She then paid a sales tax of 10%. How much did she pay for the beads

$9.85

400

 Vicky made some purchases at the Sunflower Market. She bought strawberries for $3.50, carrots for $2.25 and a bouquet of flowers for $9.95. If sales tax is 5%, what will Maria pay altogether

$16.49

500

Ben earns $12,800 a year. About 15% is taken out for taxes. How much is taken out for taxes?

(0.15)(12,800) = $ 1,920

500

One day before the use-by date, packets of biscuits are marked down to $1.50 each. If the original price was $2.10, what was the percentage markdown?

(2.10 - 1.50) ÷ 2.10

0.60 ÷  2.10

28.57% markdown

500

Vicky made some purchases at the Sunflower Market.  She bought strawberries for $3.50, carrots for $2.25 and a bouquet of flowers for $9.95.  If sales tax is 5%, what will Maria pay altogether?

(3.50 + 2.25 + 9.95) =$15.70

15.70 + 15.70(0.05)= $16.49

500

 There are two incentives listed in the table to buy a tablet. Which is the better incentive to buy the tablet and what is the savings?
 Incentive 1 - $299 15% Rebate
Incentive 2 - $299 $40 Coupon

incentive 1; $4.85

500

Mr. Barrett bought a new battery for his car. The battery cost $72. Since batteries are a taxable item, he had to pay a sales tax of 7.5%. What was the total cost of the battery in dollars and cents?


$77.40