Percent Change
The formula for Percent Change is:
(New - Old) / Old x 100
or
Change / Old x 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
Whenever your answer is a percent, what must you do
multiply by 100
or
move the decimal point two times to the right
True or False:
Commission is added to the total selling price.
False
Commission is separate from the bill.
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)
Find the Percent Increase from 8 to 11
37.5%
Find the sales tax to the nearest cent:
$24 shirt
6% tax
$1.44
Find the tip for the meal. Round to the nearest cent.
Subtotal: $56
Tip: 19%
$10.64
Find the Commission:
$389 bracelet
10% Commission
$38.90
Find Simple Interest:
Principal: $500
Rate: 7%
Time: 6 years
210
Find the Percent of Decrease from 62 to 31
50%
Find the total cost to the nearest cent
$156.72 of office supplies
6.5% tax rate
$166.91
Find the selling price:
Wholesale Cost: $70
Markup: 130%
$161
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
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
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%
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
Find the Selling Price:
$76.52 Gloves
15% Discount
$65.04
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
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
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%
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
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
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
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