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100

How do you convert a whole number to a percent? 

Step 1: Move the decimal two places to the left 

Step 2: Re-write the answer 


Example 

77 → .77

.77 --> 77%

100

How do you calculate a sale discount? 

Step 1: 

  • % off  x   original price = amount off the original price. 

Step 2 : 

  • Original price- amount off the original = sales cost 

100

How do you calculate a tip? 

  • Step 1: Write your percent as a decimal

  • Step 2: Multiple the total of the pre-tax or the subtotal by your percent (the percent in the previous step) 

  • Step 3: Add your answer to the total amount of the bill. 

100

Sam went to the local gas station and spent $12.00 on snacks and juice. Sales tax on food and beverages is 3.5%. How much did Sam spend at the store? 

$12.42

100

How do you convert a decimal into a percent? 

- Move the decimal two places to the right 

Example: 

.45 --> 45%

or 

Multiply by 100 (just move the decimal point 2 places to the right). 

 Example 

 0.065 * 100  = 6.5% 

 3.75 * 100 = 375%.

200

How do you convert a percent into a decimal? 

  • Divide the percent by 100 

Example: 

40% --> 40/100 ---> .4

200

In a gamestop, 2k21 is priced $59.99 and is marked  "75% off." What is the discount?

What is the sale price of 2k21?

$15.00

200

Jon's restaurant bill was $150.88. He wants to give a 15% tip. How much should he tip?

Tip $22.63


200

Nike is having a sale on footwear! Joey purchased a pair of jordans priced at $150.00 Taxes on clothing and footwear is 4.5%. How much did Joey spend?

$156.75

200

Jimmy's teacher returned his math exam back to him this morning. Jimmy noticed that his score was 43/50. What percent/grade did Jimmy receive on his math test?

43/50= 86%

or  

86 

300

Convert 75 into a decimal 

.75

300

On Amazon, a 55 inch flat television is priced $1119.99 and is marked  "25% off." What is the discount?

What is the sale price of television?

$840.00

300

Seth's restaurant bill was $26.54. He wanted to give the waitress a 19% tip.

How much should he tip them?

* Bonus* 

How much was Seth's total bill? 

Tip 

$5.04

Total Bill 

$31.58

300

Doug and his three friends decide to go Texas Roadhouse for dinner. The total bill for Doug and his friends was $200.00 (which included a 8.75% tax). How much is the total bill with tax included?

$217.50

300

Susan is looking to purchase her first car! She was recently approved for a $60,000 auto loan. BMW bank of North America has a fixed auto loan interest rate of 2.0% for a 72 month loan. Susan would like to purchase a 2022 BMW M340i for $54,700.00 with a 72 month term period. When factoring in her fixed interest rate, how much would Susan pay for the car at the end of the auto loan?

$55,794.00

400

Convert 105.3 into a percent 

1.053%

400

In a gamestop, NBA 2k23 is priced $59.99 and is marked  "40% off." What is the discount? On Amazon, NBA 2k23 is priced 69.99 and is marked at 50% off. 

How much are the games? Which game is cheaper? 

Gamestop price of NBA 2k23  sale price

$35.99/$36.00

Amazon price of NBA 2k23 sale price 

$35.00

400

What would the total bill be if you were to tip 15%? 


$34.64 

or 

$34.65

400

Walmart is having a early Black Friday sale on electronics. All smart TVs are 75% off, smart watches are 55% off, gaming systems are 30% off and smartphones are 25% off. Frank would like to purchase a smart watch that was originally priced at $299.99 dollars. There’s currently a 4% tax on purchases above $110.00. With tax and the sales discount included, how much would Frank pay for the smart watch?  

$140.39

or

$140.40

400

Doug and his three friends decide to go Olive Garden for dinner. The total bill for Doug and his friends was $200.00 (which included a 8.75% tax). Doug and his friends decided that they would split the bill (evenly in three ways) and each person would leave a 25% tip. How much would Doug and his friends pay for dinner?

$83.33 

500

Suzie is stuck on a math problem on her percent to decimal quiz. Suzie is told to covert 145678% to a decimal. How would Suzie solve the problem? What would the answer be? 

Move the decimal two places to the left 

or

145678/100 

Answer: 

1456.78

500

Gamestop is having a early Black Friday sale on gaming systems. All gaming system are 25% off. Joe would like to purchase playstation 5 that was originally priced at $499.99. There’s currently a 4% tax on purchases above $110.00 for electronics. With tax and the sales discount included, how much would Joe pay for the playstation 5?

$389.98

or 

$390.00

500

Calculate the total bill with a 25% tip included 


$60.01

500

Best Buy is having a early Black Friday sale on electronics. All smart TVs are 75% off, smart watches are 55% off, gaming systems are 30% off and smartphones are 25% off. Greg would like to purchase a smart tv that was originally priced at $1,999.99 dollars. There’s currently a 4% tax on purchases above $110.00. With tax and the sales discount included, how much would Greg pay for the smart TV?

$519.99

or 

$520.00


500

Nike is having a sale on apparel and footwear! Men’s footwear is 35% off. Men and women apparel is 50% and kids apparel is 60% off. Doug purchased a pair of jordans originally priced at $150.00 and bought 2 men’s athletic sweatpants originally priced at $45.99. How much did Doug spend?

$143.49