how to subtract a percentage from a number?
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If your calculator does not have a percent key and you want to add a percentage to a number multiply that number by 1 plus the percentage fraction. For example 25000+9% = 25000 x 1.09 = 27250. To subtract 9 percent multiply the number by 1 minus the percentage fraction. Example: 25000 - 9% = 25000 x 0.91 = 22750.
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In other words, multiply by 100 percent minus the percentage you want to subtract, in decimal form. To subtract 20 percent, multiply by 80 percent (0.8). To subtract 30 percent, multiply the number by 70 percent (0.7).
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To subtract 9 percent multiply the number by 1 minus the percentage fraction. Example: 25000 - 9% = 25000 x 0.91 = 22750.
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The percentage difference between two values is calculated by dividing the absolute value of the difference between two numbers by the average of those two numbers. Multiplying the result by 100 will yield the solution in percent, rather than decimal form.
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['Percentage Change: Divide by the Old Value.', 'Percentage Error: Divide by the Exact Value.', 'Percentage Difference: Divide by the Average of The Two Values.']
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['Subtract starting value minus final value.', 'Divide that amount by the absolute value of the starting value.', 'Multiply by 100 to get percent decrease.', 'If the percentage is negative, it means there was an increase and not an decrease.']
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Generally, the way to figure out any percentage is to multiply the number of items in question, or X, by the decimal form of the percent. To figure out the decimal form of a percent, simply move the decimal two places to the left. For example, the decimal form of 10 percent is 0.1.
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To convert from a decimal to a percentage, multiply the decimal by 100. This means moving the decimal point two places to the right. For example, 0.4 as a percentage is 40 percent, and 0.99 as a percentage is 99 percent. To convert from a percentage to a decimal, divide the percentage by 100.
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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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['function percentage (p, t) {', 'return parseInt((p / t) * 100);', '}']
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To subtract 20 percent, multiply by 80 percent (0.8). To subtract 30 percent, multiply the number by 70 percent (0.7). Before beginning, determine the gross amount you want to use before subtracting a percentage.
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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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First: work out the difference (decrease) between the two numbers you are comparing. 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.
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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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To change a fraction to a percent, • Change the fraction to a decimal. Change the decimal to a percent. Or, move the decimal point 2 places to the left. 1.2% = .
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['function get_percentage($total, $number)', 'if ( $total > 0 ) {', 'return round($number / ($total / 100),2);', '} else {', 'return 0;', '}', '}']
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Always subtract the lower number from the higher number, as you are trying only to find the percentage difference between the two numbers. Divide the difference found in Step 1 by the actual result. For example, you would divide 14 by 214 to get approximately 0.06. Multiple this number by 100 to get your percentage.