Percent Proportion/Equation
Percent Word Problems
Percent Change/Percent Error
Sales Tax, Tip, Discount
Simple Interest
100

A number is 22% of 190. 

What is 41.8

100
Use the percent proportion to solve: If 12 out of 25 people like blue jolly ranchers. What percent of people like blue jolly ranchers?
What is 48% of people
100

A fruit drink that was sold in 16-ounce containers is now sold in 20-ounce containers. What is the percent of change in quantity? State whether this is an increase or a decrease.

What is 25% increase?

100
How much would a bicycle cost if it were marked down 15% from its original price of $289?
What is $245.65.
100
Name the simple interest formula and state what each variable stands for.
What is I = prt I = interest p = principal r = % as a decimal t = time in years
200

38 is this percent of 95. 

What is 40%

200
Use the percent equation to solve: The local bakery sells 150 donuts a day. If 70% if these donuts are sold in the morning, how many donuts are sold in the morning?
What is 105 donuts
200

On Tuesday, Nash made 231 free throws on Wednesday he made 258 free throws. What is the percent change in his free throws? Round to the nearest tenth of a percent. State whether this is increase or decrease.

What is 11.7% increase?

200
If a sweater costs $37.99, and the sales tax is 6%, what is the total price of the sweater?
What is $40.27.
200
If you invest $1200 in an account that pays 13.2% simple interest, what is the balance of the account after 4 years?
What is $633.60
300

23.1 is 11% of this number. 

What is 210

300
Use the percent equation. 0.5% of all statistics are true. If you have a list of 1,400 statistics. How many are true?
What is 7 statistics.
300

Al's Quick Mart sells milk for $1.99 per gallon, but they used to sell it for $2.79. What is the percent change in the price? Round to the nearest tenth of a percent. State whether this is increase or decrease.

What is 28.7% decrease?

300
A certain container of mouthwash usually costs $2.99 at a store. If it is on sale for 20% off, how much does the mouthwash cost now?
What is $3.59
300
If you buy a necklace for $400 on your credit card, which charges 21.3% simple interest, how much interest will be added after 15 months?
What is $106.50
400

410.26 is 73% of this number. 

What is 562?

400
Use the percent proportion A store paid $75.29 for a couch. To make a profit, the store charged 270% of the cost. What is the price tag the store puts on the couch?
What is $208.28
400

A computer at an electronics store is $1099. Determine the percent of change in price if the actual price was $1349 last month. Round to the nearest tenth of percent & classify as increase/decrease. 

What is 18.5% decrease?

400
Elvia can get a $10.28 discount on a $68.53 purchase at a certain department store because she works there. What percent discount does she get?
What is 15% discount.
400
Find the interest earned if you place $76.43 into an account that pays 21.5% simple interest, and leave it in for 3 months.
What is $4.11
500

135.1 is this percent of 386. 

What is 35%?

500
Use the percent equation: John flips a quarter. It falls on tails 6 times, if this 30% of the time. How many times did he flip a quarter.
What is 20 times.
500

A student measured the mass of an animal to be 325g last week. The mass today is 342g. What is the percent change of the mass to the nearest tenth of a percent? Classify as increase/decrease. 

What is 5.2% increase?

500
If a stereo is sold for $59.99, and Karen pays $64.19 for it when she checks out, what is the sales tax in the area?
What is 7% tax.
500
If you take out a loan for $550 at 7.2% simple interest and make no payments for 6 months, how much do you owe total?
What is $569.80.
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