how to calculate percentage from given number?
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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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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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['x = input()', 'y = input()', 'z = 100/(int(X)+int(Y))', "print('Percent of X: '+str(X*Z)+'%')", "print('Percent of Y: '+str(Y*Z)+'%')"]
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To calculate 25 percent of a number, simply divide it by 4. For example, 25 percent of 12 is 12 divided by 4, or 3. 10 percent means one tenth. To calculate 10 percent of a number, simply divide it by 10 or move the decimal point one place to the left.
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['Multiply by 100 and add a percentage sign.', '0.876 = 0.876 * 100 = 87.6%']
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To find 1% of something (1/100 of something), divide by 100. Remember how to divide by 100 mentally: Just move the decimal point two places to the left. For example, 1% of 540 is 5.4.
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Subtract the original value from the new value, then divide the result by the original value. Multiply the result by 100. The answer is the percent increase. Check your answer using the percentage increase calculator.
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Calculating the Percent In finding the percent of a number, divide the percentage by the quantity then multiply the product by 100. Put a percent symbol (%) after the final product.
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If you have to turn a percentage into a decimal, just divide by 100. For example, 25% = 25/100 = 0.25. To change a decimal into a percentage, multiply by 100.
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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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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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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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['Converting from a decimal to a percentage is done by multiplying the decimal value by 100 and adding %.', 'Example: 0.10 becomes 0.10 x 100 = 10%', 'Example: 0.675 becomes 0.675 x 100 = 67.5%']
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Convert Fractions to Percents. Divide the top of the fraction by the bottom, multiply by 100 and add a "%" sign.
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If your calculator has a percentage button, the calculation is as follows: 40 x 25% = 10. If your calculator does not have a percentage button, you must first divide the percentage by 100: 25 ÷ 100 = 0.25. You can then multiply this answer by the whole to determine the part: 0.25 x 40 = 10.
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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 can convert fraction part of the mixed number to a decimal and then multiply by 100 to get the percent value. Alternatively you can convert mixed number to an improper fraction, and then convert it to a decimal by dividing numerator by denominator. Finally, multiply the decimal by 100 to find the percent value.