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Q:

# How do I subtract a percentage from a price?

A:

To subtract a percentage from a price, convert the percentage into a decimal and multiply the decimal by the price. The answer is the amount to subtract from the original price.

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To subtract 25 percent from a price of \$20, first convert 25 percent into a decimal. The decimal form of 25 percent is .25, which represents 25 out of a total of 100. Next, multiply the decimal by the original price. Twenty multiplied by .25 equals 5. Thus, 25 percent of the \$20 price is \$5. Subtracting 25 percent of the price is the same as subtracting \$5 from the price. In this example, an item that costs \$20 with a 25 percent discount is sold for \$15.

## Related Questions

• A:

Moving decimals is an easy method of multiplying numbers containing two numerals after a decimal, with a check at the end to ensure that the decimals are properly placed after the multiplication process is complete. All that's required is ignoring decimal placement when solving the problem and then determining just where the decimal should be returned after completion.

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The decimal system was invented by Hindu mathematicians in India between the first and sixth centuries A.D. This system is sometimes also called the Hindu-Arabic numeral system because it was first introduced to Europeans by Arabs, who had acquired the system from the Hindus earlier.

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Percent simply means "out of 100." Instead of saying it "he made 54 out of 100 shots," it is easier to say "he shot 54 percent from the field." The percentage of any number may be calculated by following just a few simple steps.