Percent to Decimal/Decimal to Percent
"Of" Problems
Percent Problems
Sales Tax, Tip, Discount
Misc. Math
100
Convert 120% to a decimal.
What is 1.2
100
50% of 42?
What is 21?
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

The price of a $50 bicycle with 10% tax

What is $55?

100

How do you find COP?

y/x

200
Convert 4.9% to a decimal.
What is .049
200

1% of 98

What is 0.98

200

The number of textbooks the school bought this year was 25% more than the number of books bought last school year. This school year we bought 180 textbooks. What was the original number of textbooks purchased?

What is 148 books last year?

200

The 15% tip on a $30 check

What is $4.50?

200

what is 1/4 divided by 1/2

What is 1/2?

300

Convert .008 to a percent

What is 0.8%

300

True or False? Finding the amount of commission someone makes is an "Of" problem.

True!

300

Tyler calculates that he will send 95 messages in one day. He only sends 80 messages in one day. What is Brian’s percent error?

18.75%

300

The cost of a pair of Jordans originally priced at $200, marked 25% off, before tax

What is $150?

300

Kendall has a recipe for chocolate cookies. She uses 2½ cups of flour to make 4 batches of cookies. Navaeh will follow the same recipe. She will make b batches of cookies using f cups of flours. What equation represents the relationship between b and f?

b=1.6f

400
Convert 3.1 to a percent
What is 310%
400

Amy works as a salesperson at Best Buy. If Amy earns 5% commission, how much does she make if she sells a $875 computer?

What is $43.75?

400

If an item has a sale price of $40 after it has been discounted 20%, what was the original price?

$50

400

The cost of a pair of Jordans originally priced at $200, marked 25% off, then 10% tax added?

What is $165?

400

A store has a discount of 30%. If the regular price of an item is x dollars, what is the discount price in dollars? Show your work or explain your reasoning.

0.7x

x-0.3x

500
Convert 0.07% to a decimal
What is .0007
500

How much money would the Best Buy get if Amy sells the $875 computer with 5% commission? 

The store gets $813.25 and because Amy gets $43.75 and 

875-43.75=813.25

With commission, the profits get split between the company and the seller 

500

The store bought a pair of shoes for $50, and sold it for $80. What percentage was the markup? Show your work or explain your reasoning.

What is 60% markup?

500

The percentage of the discount here: Original Cost- $20.00 Sale Price- $5.00

What is 75% off.

500

What is the formula for circumference of a circle? 

c=pi d

c=2 pi r

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