Unit 6 review - percents

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 a percentage of a number?

Back

To calculate a percentage of a number, multiply the number by the percentage (in decimal form). For example, 15% of 200 is 200 * 0.15 = 30.

Tags

CCSS.6.RP.A.3C

Front

What is the formula to calculate the total cost after a tip?

Back

Total Cost = Original Cost + (Tip Percentage * Original Cost).

Tags

CCSS.6.RP.A.3C

Front

If a meal costs $29.99 and a 15% tip is added, what is the total cost?

Back

Total Cost = $29.99 + ($29.99 * 0.15) = $34.49.

Tags

CCSS.6.RP.A.3C

Front

How do you find the discount amount on a sale item?

Back

Discount Amount = Original Price * Discount Percentage.

Tags

CCSS.6.RP.A.3C

Front

What is the discount on a $55 item with a 25% discount?

Back

Discount = $55 * 0.25 = $13.75.

Tags

CCSS.6.RP.A.3C

Front

What is markup in pricing?

Back

Markup is the amount added to the cost price of goods to cover overhead and profit.

Tags

CCSS.6.RP.A.3B

Front

If an item costs $40 and has an 80% markup, what is the selling price?

Back

Selling Price = Cost + (Markup Percentage * Cost) = $40 + ($40 * 0.80) = $72.

Tags

CCSS.6.RP.A.3C

Front

What does a percent change represent?

Back

Percent change represents the degree of change over time, calculated as (New Value - Old Value) / Old Value * 100%.

Tags

CCSS.6.RP.A.3C

Front

How do you calculate percent change?

Back

Percent Change = ((New Price - Old Price) / Old Price) * 100%.

Tags

CCSS.6.RP.A.3C