what is the formula to take out percentage?
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The math to determine a percentage is to divide the numerator (the number on top of the fraction) by the denominator (the number on the bottom of the fraction), then multiply the answer by 100. For example, the fraction 6/12 turns into a decimal like this: 6 divided by 12 (which equals 0.5) times 100 equals 50 percent.
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['Step 1: Write down the percent divided by 100 like this: percent 100.', 'Step 2: If the percent is not a whole number, then multiply both top and bottom by 10 for every number after the decimal point. ... ', 'Step 3: Simplify (or reduce) the fraction.']
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['Step I: Obtain the percentage.', 'Step II: Convert the given percentage into fraction by dividing it by 100 and removing percentage symbol (%).', 'Step III: Reduce the fraction obtained in step II in the simplest form.', 'Step IV: Write the fraction obtained in step III as a ratio.']
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To convert a ratio into the form of a percentage, simply divide m by n and then multiply the result by 100. For example, If the ratio is 12:4, convert it to the form 12/4, which is an equation we can solve. After that multiply the result by 100 to get the percentage.
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Write down the whole number amount. For example: 500. Multiply the whole number amount by the decimal equivalent of the percentage. The result is the percentage portion amount.
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To determine totals from a percent in the future, multiply the given percentage value by 100 and divide that product by the percent. This method works in any instance where a percentage and its value are given. For example, when 2 percent = 80, multiply 80 by 100 and divide by 2 to reach 4000.
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To convert 25 percent to a decimal number, so that you can multiply it with any number to subtract 25 percent from it, you deduct 25 from 100, then divide that result by 100. Here is the math to illustrate. Now you can multiply 0.75 by any number that you want to subtract 25 percent from.
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Finding a Specific Percentage of a Number First, convert the percentage you want into a fraction or a decimal. So in this case, 25 percent = 0.25 = 1/4. Then multiply the decimal or fraction by the number you want the percentage of.
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['Written using the formula: X = 7 ÷ 20%', 'Convert the percent to a decimal.', '20% ÷ 100 = 0.2.', 'X = 7 ÷ 0.2.', 'X = 35.', 'So 20% of 35 is 7.']
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['Convert the problem to an equation using the percentage formula: P% * X = Y.', 'P is 10%, X is 150, so the equation is 10% * 150 = Y.', 'Convert 10% to a decimal by removing the percent sign and dividing by 100: 10/100 = 0.10.']
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To calculate a percentage, you need a fraction. Convert the fraction to decimal form by dividing the numerator by the denominator, multiply by 100, and there's your percentage. When you compile a data set, each value (x) can be expressed as a percentage of the entire set.
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To calculate percentage decrease: Then: divide the decrease by the original number and multiply the answer by 100. If your answer is a negative number, then this is a percentage increase. If you wish to calculate the percentage increase or decrease of several numbers then we recommend using the first formula.
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About This Article. To calculate percentages, start by writing the number you want to turn into a percentage over the total value so you end up with a fraction. Then, turn the fraction into a decimal by dividing the top number by the bottom number. Finally, multiply the decimal by 100 to find the percentage.
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another number is easy. If you want to know what percent A is of B, you simple divide A by B, then take that number and move the decimal place two spaces to the right. That's your percentage!
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About This Article To calculate percentages, start by writing the number you want to turn into a percentage over the total value so you end up with a fraction. Then, turn the fraction into a decimal by dividing the top number by the bottom number. Finally, multiply the decimal by 100 to find the percentage.
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To subtract any percentage from a number, simply multiply that number by the percentage you want to remain. In other words, multiply by 100 percent minus the percentage you want to subtract, in decimal form.
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You divide your percentage by 100. So, 40% would be 40 divided by 100 or . 40. Once you have the decimal version of your percentage, simply multiply it by the given number.