What is percent change?
March 22nd Percent Change - 7th Grade

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Mathematics
•
7th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
Percent change is a way to express a change in value as a percentage of the original value. It is calculated using the formula: ((new value - old value) / old value) x 100.
2.
FLASHCARD QUESTION
Front
How do you calculate a tip as a percentage?
Back
To calculate a tip as a percentage, multiply the total bill by the tip percentage (in decimal form). For example, for a $28 bill and a 20% tip: $28 x 0.20 = $5.60. Total bill = $28 + $5.60 = $33.60.
3.
FLASHCARD QUESTION
Front
What is a discount?
Back
A discount is a reduction in the original price of a product or service, often expressed as a percentage. For example, a 25% discount on a $100 item means you save $25.
4.
FLASHCARD QUESTION
Front
How do you find the sale price after a discount?
Back
To find the sale price after a discount, subtract the discount amount from the original price. For example, if an item costs $100 and has a 20% discount, the discount is $20, so the sale price is $100 - $20 = $80.
5.
FLASHCARD QUESTION
Front
What is a markup?
Back
A markup is an increase in the price of a product, usually expressed as a percentage of the cost price. For example, if a product costs $10 and has a 20% markup, the selling price is $10 + ($10 x 0.20) = $12.
6.
FLASHCARD QUESTION
Front
How do you calculate sales tax?
Back
To calculate sales tax, multiply the purchase price by the sales tax rate (in decimal form). For example, for a $150 jacket with a 7% sales tax: $150 x 0.07 = $10.50.
7.
FLASHCARD QUESTION
Front
What is the formula for percent decrease?
Back
The formula for percent decrease is: ((old value - new value) / old value) x 100.
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