Percents and Percent Proportions

Front

What is a percent?

Back

A percent is a ratio expressed as a fraction of 100. It represents a part of a whole.

Front

How do you calculate the original price from a sale price and percent?

Back

To find the original price, divide the sale price by the percent (in decimal form). For example, if a car is sold for $12,000, which is 80% of its original price, the original price is $12,000 ÷ 0.80 = $15,000.

Tags

CCSS.6.RP.A.3C

Front

What is a markup?

Back

A markup is the amount added to the cost price of a product to determine its selling price.

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CCSS.6.RP.A.3B

Front

How do you calculate the selling price with a markup?

Back

To calculate the selling price, multiply the cost price by (1 + markup rate). For example, if a laptop costs $1000 and has a 20% markup, the selling price is $1000 × 1.20 = $1200.

Tags

CCSS.6.RP.A.3C

Front

What is the formula to find a percentage of a number?

Back

To find a percentage of a number, multiply the number by the percentage (in decimal form). For example, to find 15% of 150, calculate 150 × 0.15 = 22.5.

Tags

CCSS.6.RP.A.3C

Front

What is a percent proportion?

Back

A percent proportion is an equation that shows two ratios are equal, often used to find the percent of a quantity.

Front

How do you solve a percent proportion?

Back

To solve a percent proportion, set up the equation as part/whole = percent/100 and cross-multiply to find the unknown.

Tags

CCSS.6.RP.A.3C

Front

What is 25% of 200?

Back

25% of 200 is 200 × 0.25 = 50.

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CCSS.6.RP.A.3C

Front

If a product costs $80 and has a 25% markup, what is the cost price?

Back

The cost price is $80 ÷ 1.25 = $64.

Tags

CCSS.6.RP.A.3C

Front

What is the relationship between percent, fraction, and decimal?

Back

Percent is a fraction with a denominator of 100, and it can be converted to a decimal by dividing by 100.