Percents and Percent Change

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, to find 20% of 50, calculate 50 x 0.20 = 10.

Tags

CCSS.6.RP.A.3C

Front

What does it mean to find the percent change?

Back

Percent change measures how much a value has increased or decreased relative to its original value, expressed as a percentage.

Tags

CCSS.6.RP.A.3C

Front

How do you calculate percent change?

Back

Percent change = ((New Value - Old Value) / Old Value) x 100.

Tags

CCSS.6.RP.A.3C

Front

What is the sale price after a discount?

Back

The sale price is calculated by subtracting the discount from the original price. Sale Price = Original Price - Discount.

Tags

CCSS.6.RP.A.3C

Front

If a shirt costs $40 and is on sale for 25% off, what is the sale price?

Back

Sale Price = $40 - ($40 x 0.25) = $30.

Tags

CCSS.6.RP.A.3C

Front

What is sales tax?

Back

Sales tax is a percentage added to the price of goods and services, collected by the seller and paid to the government.

Tags

CCSS.6.RP.A.3C

Front

How do you calculate the total price including sales tax?

Back

Total Price = Original Price + (Original Price x Sales Tax Rate).

Tags

CCSS.6.RP.A.3C

Front

What is the formula to find what percent one number is of another?

Back

Percent = (Part / Whole) x 100.

Front

If 30 is 60% of what number, how do you find that number?

Back

To find the number, use the formula: Number = Part / (Percent / 100). Here, Number = 30 / (60 / 100) = 50.

Tags

CCSS.6.RP.A.3C