# How much is 30% off something

Divide the percentage that represents the new sale price — in this case, 70 percent — by 100 to convert it to a decimal: Sciencing Video Vault. Calculate the exact sale price. Convert this decimal amount into a percentage. Calculating a discount is one of the most useful math skills you can learn. Determine the number of tens in the percent off. Exercises Directions: Judy McGuirk. Convert the percentage discount to a decimal by moving the decimal two places to the left: Yes No.

You can also calculate the sale price automatically, instead of subtracting the discount from the original price.

## Discount and Sale Price

Related Content. Consumer Math Lessons. The rate of discount is usually given as a percent, but may also be given as a fraction. Next, divide the discount amount by original price.

## Percentage Calculator

Although the percentage formula can be written in different forms, it is essentially an algebraic equation involving three values. The percentage difference between two values is calculated by dividing the absolute value of the difference between two numbers by the average of those two numbers. Typically, a store will discount an item by a percent of the original price. Together, they cited information from 6 references. Let's look at another example that uses a fraction. Solve each problem below by entering a dollar amount with cents. You can also use the percent off calculator to determine how much more you have to pay if the price of the product goes up! Once you take the 30 percent discount, you'll be paying 70 percent of the original price.

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