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Chapter 6 Review Part 2:Sales, Discount, and Tax
Discount
$ 150.00 list price20% discount rateDiscount___________Sale Price__________
150.00X 0.20
$30.00
150.00
- 30.00
$120.00
Multiply list price to discount rate List price subtract discount
$30.00$120.00
Discount Practice Problems
Shirt usually costs $25.0030% discount rateDiscount____________Sale Price___________
$25.00
X 0.30
$7.50
$25.00- 7.50$ 17.50
Multiply list price to discount rate Subtract the discount to the original price
$7.50
$17.50
Discount Practice Problems
Car costs $6,295.0010% discount rate Discount_________Sale Price________
Multiply cost to discount rate
$6,295.00
X 0.10
$629.50
Subtract discount from cost
$6,295.00
- 629.50
$ 5,665,50
$629.50
$5,665.50
Sales Tax A Digital Download costs $10.90 with 5% tax
1) Turn % to decimal 5% / 100 = 0.05
2) Multiply decimal to cost $10.90X 0.05 $0.55
3) Add tax to cost $10.90+ 0.55$11.45
Sales Tax Practice Problems
A jacket costs $75.25. Tax rate 3%
1) Turn tax rate into decimal3% / 100 = 0.03
2) Multiply cost to decimal $75.25
x 0.03 $3.77
3) Add tax to original price $75.25+ 3.77 $ 79.02
Sales Tax Practice Problems
Used car costs $4,000.00. Tax rate is 8%
1) Turn tax rate into decimal8% / 100 = 0.08
2) Multiply cost to decimal $4,000.00
x 0.08 $ 320.00
3) Add tax to original price $4,000.00+ 320.00 $ 4,320.00
NOTECARD
The next slides will show you what you can have on your note card.
It is your responsibility to bring the note card to class on Monday.
Note card will be turned in with test.
FINDING RATE, BASE, & PERCENTAGE
Remember: You only need to solve one way.Both ways of solving are presented on the following pagesOnly copy down the way you will use on the test
What to put on your note card
Discount1) Turn discount rate to decimal
2) Multiply decimal to original price
3) SUBTRACT answer from original price
Example problem:
Calculator org. price: $9.95
Discount Rate: 10%
10% / 100 = 0.10
$9.95
x 0.10
0.995 = $1.00 round up
$9.95
- 1.00
$8.95
What to put on your note card
Sales Tax1) Turn sales tax rate to decimal
2) Multiply decimal to org. price
3) ADD answer to original price
Example problem:
Tickets: $15.00
Sales Tax Rate: 6%
6% / 100 = 0.06
$15.00
x 0.06
0.90
$15.00
+ 0.90
$15.90
What to put on your note card
1) Divide is to of 2.7 / 18.
= 0.152) Multiply answer by 100
0.15 x 100 = 15%
1) Write down formula Is = %of 100
2) Plug in your knowns.2.7 = x
18 100
3) Cross Multiply 18x = 270
4) Divide to get x by itself 18x = 270 18 18
x = 15%
FINDING THE RATE (%)Example problem: x% is 2.7 of 80
What to put on your note card
FINDING THE BASE (OF)Example problem: 22% of x is 17.6
1) Turn 22% into a decimal.
22% -> 0.22
2) Divide the percentage (is) and decimal 17.6 / 0.22 =
80
• Write down formula
• Is = %
of 100
2) Plug in your knowns.
17.6 = 22
x 100
3) Cross Multiply
22x = 1,760
4) Divide to get x by itself
22x = 1760
22 22
x = 80
What to put on the note card
FINDING THE PERCENTAGE (IS)Example problem: 22% of 36 is x.
1) Turn 22% into a decimal.22% -> 0.22
2) Multiply the two knowns.0.22 x 36 =
7.92
1) Write the formula
Is = %
of 100
2) Plug in your knowns.
x = 22
36 100
3) Cross Multiply
100x = 792
4) Divide to get x by itself
100x = 792
100 100
x = 7.92
