Comparing and Converting
Percent Equation/proportion
Discount and Mark up
Percent of Change
Simple interest
100

0.86 as a percent

86%

100

What is the percent proportion formula?

a/w=p/100

100

How do you find the sales price if there is a discount? 

Sales price= original- discount

100

Is this an increase or decrease and which percent of change formula would you use? 16 centimeters to 44.2 centimeters. 

Increasing, Percent of increase

100

What is the formula for simple interest?

I=Prt

200

Which is bigger 0.56 or 56%

They are the same 

200

What is the percent equation?

a=pw

200

How do you find the selling price with markup?

selling price= original+markup

200

What is the formula for Percent Change?

Percent change= amount of change/original

200

P=500 I=55 t=5 what is the interest rate

2.2%

300

Which is bigger 0.086 or 86%

86%

300

Use the percent proportion to answer: 14 is what percent of 56? 

25%

300

What is the selling price if the cost to the store $80 and markup is 60%

128

300

What is the formula for percent Error?

Percent Error= amount of error/ actual amount

300

what is the amount paid for the loan 2000 at 12% for 3 years

2720

400

0.023% as a decimal

0.00023 

400

Use the percent equation: 36 is 0.9% of what number? 

40

400

A $129.50 stereo has a discount of 40%. The next month, the discount is 60%. Does that mean the stereo is free now? If not, what would be the sales price with 60% discount.

discount=77.70

sales price=129.50-77.70= $51.80

400

You estimate a baby pig is 20 pounds. It is actually 16 pounds. what is the percent error. 

25%

400

You deposit $5000 in an account earning 7.5% simple interest. How long will it take for the balance of the account to be $6500?

4 Years

500

Rank from least to greatest: 38%, 8/25, 0.41

2,1,3

500

A surfboard cost $240. The sales tax on a surfboard is $12. what is the percent of sales tax?

5%

500

A $129.50 stereo has a discount of 40%. The next month, the discount is 60%. How much would you save if you bought the stereo at 60% off?

$25.9

500

Why is changing 20 to 40 is 100% increase, but change from 40 to 20 is 50% decreasing?

One uses Percent increase, the other uses percent decrease. 

500

You put $3000 in a CD at the simple interest rate of 5.6%. How long will it take to earn $336 in interest? 

2 years