Percent Change
Tax, Tips, Markups, Discounts
Tax, Tips, Markups, Discounts 2
Commission
Interest
100

The formula for Percent Change is:

(New - Old) / Old x 100

or

Change / Old x 100

100

Whenever you are using a percent, what must you do?

divide it by 100 

or

move the decimal point two times to the left

100

Whenever your answer is a percent, what must you do

multiply by 100

or

move the decimal point two times to the right

100

True or False:

Commission is added to the total selling price.

False

Commission is separate from the bill.

100

Interest is found with the formula: I=PRT

What is P?

What is R?

What is T?

Principal (starting $$$)

Interest Rate (as a decimal)

Time (usually in years)

200

Find the Percent Increase from 8 to 11

37.5%

200

Find the sales tax to the nearest cent:

$24 shirt

6% tax

$1.44

200

Find the tip for the meal. Round to the nearest cent.

Subtotal: $56

Tip: 19%

$10.64

200

Find the Commission:

$389 bracelet

10% Commission

$38.90

200

Find Simple Interest:

Principal: $500

Rate: 7%

Time: 6 years

210

300

Find the Percent of Decrease from 62 to 31

50%

300

Find the total cost to the nearest cent

$156.72 of office supplies

6.5% tax rate

$166.91

300

Find the selling price:

Wholesale Cost: $70

Markup: 130%

$161

300

Angie wants to earn $850 dollars this week at her job where she earns 15% commission. What is the minimum amount of she needs to sell to make this much money? Round your answer to the dollar

$5667

300

Francine borrows $10,000. She gets a 8% interest rate. If it takes her 5 years to pay back the loan, how much total will she owe after 5 years?

$14,000

400

By halftime, the basketball team had scored 32 points. By the end of the game, the team had scored a total of 56 points. Find the percent of increase in the number of points that the team scored. Round the percent to the nearest tenth if necessary.

 

75%

400

Anita and her 5 friends went out to dinner. The restaurant adds an automatic 18% tip to the bill for parties over 5 people, added after tax. If the Subtotal for the bill was $120, and the sales tax rate is 5%, how much was the total bill, after tip?

$148.68

400

Find the Selling Price:

$76.52 Gloves

15% Discount

$65.04

400

Jolene's monthly expenses are $2400 a month (rent, groceries, gas, etc). She works at a jewelry store where she gets a weekly salary of $368 plus 16% commission. What is the amount she will have to sell this month to pay her expenses?

$5800

400

Frank opens a saving account, and deposits $3400. The account earns 3% interest per year. How much will be in the account after 21 months?

$3578.50

500

At an arts and crafts fair, a photographer priced a framed print at $49.50. He ended up selling it for $45.00. Find the Percent of CHANGE in the price of the print. Round the percent to the nearest tenth if necessary.

-9.1%

500

Supreme was selling a Crowbar for $359. You bought it during a 40% clearance sale. If sales tax is 7%, how much did you pay for it?

$230.48

500

During a 20% off sale, the price of a pair of Crocs were 31.99.

Jacob bought his Crocs before the sale, with a 30% off coupon. How much did he pay?

$27.99

500

You are working at a Car Dealership, where you get 6% Commission. Maurice wants to buy a brand new car for $65,000. However, Maurice is the nephew with the owner of the dealership, and gets 20% off. How much will you get in Commission?

$3120

500

Bill took a $40 loan from his friend Ted. Ted is charging him 10% DAILY interest. How much will Bill owe Ted if he doesnt pay him back for one, non-leap year

$1500