A percentage is subtracted from a number by calculating the percentage in relation to that number and then performing a basic subtraction function. For example, to calculate 200 minus 70 percent, a person must first know that 70 percent of 200 is 140. Then, 140 is subtracted from 200 to get the answer, which is 60.
Know MoreBefore performing the subtraction step, individuals must convert the percentage to a relevant number. First, a person moves the decimal point to the left two places, converting the percentage figure to a number. Thus, 70 percent becomes 0.70. The original number is then multiplied by the percent number: In the example, 200 times 0.70 equals 140.
Learn more about Fractions & PercentagesTo determine the percentage of a number, divide the fraction of the amount by the whole amount, and multiply the result by 100. As AAA Math explains, to calculate what percentage 68 is of 87, divide 68 by 87; This equals approximately 0.7816. Multiply this answer by 100. The final answer is 78.16 percent.
Full Answer >To turn a number into its equivalent percentage, a person should move the decimal point two places to the right and then add the percent sign. For example, to turn the number 7 into a percentage, a person would move the decimal point two places to the right, which requires the addition of two 0s after the 7, and the percentage is expressed as 700 percent. In the case of .35, moving the decimal point two places to the right expresses the number in its percentage form as 35 percent.
Full Answer >In order to express a number as a percentage, one converts it from a mixed number or fraction to a decimal, moves the decimal point two places to the right and adds the percent sign. By definition, percentage is the rate per 100. Moving the decimal point is a shortcut for multiplying by 100.
Full Answer >Subtracting decimals involves writing the two decimals one below the other and making sure that the decimal points line up before subtracting in the normal manner. However, the larger decimal should be placed above the smaller one. Similarly, if the two decimals do not have the same length, then add zeroes before subtracting them.
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