How to Convert Percentage to Decimal with a Calculator
Converting percentages to decimals is very easy, especially with the help of a calculator. Some calculators have a percent key on them, which makes it very easy to convert the percentage to a decimal, because on some calculators, all you need to do is input the percentage, hit the percent key and the decimal appears on your screen.
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Instructions
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Enter the percentage as a whole number on the calculator. Generally, percentages of sale will be under 100 percent. However, percentages such as photograph enlargements will be more than 100 percent.
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Press the percent (%) button on the calculator, if your calculator has one. On some models, this will automatically convert the percentage to a decimal. If your calculator does not have a percent button or it doesn't convert the percentage to a decimal, divide the percentage value by 100. For example, if you are trying to find the decimal amount for 10%, divide 10 by 100, which gives you .10.
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Use a shortcut to convert a percentage to a decimal by moving the decimal point two places to the left. This gives you the decimal value of percentage without using calculator.
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Calculate the percentage of a price or other value by multiplying the decimal value of the percentage by the cost of the item in question (or other original value). This gives you the amount of discount amount. To calculate the amount you will pay less the discount, subtract the percent of discount from 100, then convert that to a decimal. Multiply that decimal by the original price of the item to get the final price.
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Tips & Warnings
Show a decimal as a percentage by moving the decimal two places to the right and adding a percent sign. This can easily be done without the use of a calculator.
Be careful not to hit the percent button on the calculator twice, or you will end up with a very small decimal and your calculations will not be correct.
