Percent Equation
Percent Proportion
Percent of Change
Tax/Discount
Simple Interest
100

 10% of 10

What is 1?

100

10/100 = p / 50

5

100
Find percent of change: 100 to 75

What is a 25% decrease?

100

Find total price after tax: $2000 sandwich, 7% tax

What is $2,140?

100

Find the simple interest earned to the nearest cent for each principal, interest rate, and time: 

$1000, 3%, 3 years

$90

200
25% of a number is 10

What is 40?

200

20/100 = 40/ w

What is 200?

200

Find percent of change: 50 to 80

What is a 60% increase?

200

Find total price after a discount: $350, 20% discount

What is $280?

200

Find the simple interest earned to the nearest cent for each principal, interest rate, and time: 

$300, 3%, 4 years

What is $36

300

120% of 34

What is 40.8?

300

n/100= 60/10

What is 600

300

Find percent of change: 10 to 100

900% increase

300

You ate a $35.50 meal. You want to tip the waiter 20% of the meal. What is the total price you will pay?

What is $42.60?

400

60 is what percent of 85?

What is 70.59%?

400

3/100 = 90/ w

What is 3,000?

400

Find percent of change: 15.5 to 31 

What is a 100% increase

400

You buy a video game that costs $60 from your local game selling store. The game-selling salesmen slyly sneaks in that the sales tax 7.7%. How much are you paying total for this game?

What is $64.62?

500

6.5% of 32

What is 2.08

500

Solve for n 

n/100 =35/80

What is 43.75?

500

Find percent of change: 35 to 21

What is a 40% decrease?

500

You buy a chair that costs $200 from a store. They are having a 20% discount on all chairs. The tax is 6% after the discount. What is the total cost of the chair after the discount and tax?

What is $169.60?

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