what is the equation to find percent of a number?
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1. How to calculate percentage of a number. Use the percentage formula: P% * X = Y.
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['Multiply by 100 and add a percentage sign.', '0.876 = 0.876 * 100 = 87.6%']
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Calculating percentages The basic formula for calculating a percentage is =part/total. Say you want to reduce a particular amount by 25%, like when you're trying to apply a discount. Here, the formula will be: =Price*1-Discount %. (Think of the “1” as a stand-in for 100%.)
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Learning how to calculate the percentage of one number vs. 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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To calculate a percentage of a percentage, convert both percentages to fractions of 100, or to decimals, and multiply them. For example, 50% of 40% is: 50100 × 40100 = 0.50 × 0.40 = 0.20 = 20100 = 20%.
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How do you work out the percentage of something? To calculate what percentage the number A is of B, you can simply divide A by B and then multiply by 100 or simply move the decimal place to the right twice. So for example the percentage 2 is of 4 is 2/4*100 = 0.5*100 = 50%.
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['Divide the numerator by denominator.', 'Take the result and multiply by 100 .', 'The result is the fraction as a percent.']
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All you have to do to find x% of any number(let's say Y) is to multiply it with x and then divide it by 100! 2 * 50 / 10= 100/10 = 10. (20/100)=1/5.
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Write the percent equation: Percent · Base = Amount. Use n for the unknown (percent). Divide to undo the multiplication of n times 72. Move the decimal point two places to the right to write the decimal as a percent.
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Step 1) Get the percentage of the original number. If the percentage is an increase then add it to 100, if it is a decrease then subtract it from 100. Step 2) Divide the percentage by 100 to convert it to a decimal. Step 3) Divide the final number by the decimal to get back to the original number.
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How to calculate X is What Percent of Y ? To determine X is what percent of Y , divide X by Y and multiply the result by 100 to get the percentage.
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['Click any blank cell.', 'Type =42/50, and then press RETURN . The result is 0.84.', 'Select the cell that contains the result from step 2.', 'On the Home tab, click Percent Style . The result is 84%, which is the percentage of correct answers on the test.']
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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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Here, we're told that 25% of a number is 5. So, to find 100% of the number, we count by 25s up to 100: 25, 50, 75, 100. 100% is 20.
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What one does to a number, the other “undoes.” When you have an equation such as 20% · n = 30, you can divide 30 by 20% to find the unknown: n = 30 ÷ 20%. You can solve this by writing the percent as a decimal or fraction and then dividing.
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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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['function get_percentage($total, $number)', 'if ( $total > 0 ) {', 'return round($number / ($total / 100),2);', '} else {', 'return 0;', '}', '}']