Twenty percent of $80 is $16. To find out the answer to this problem, the number 80 is multiplied by .2, which is the decimal equivalent of 20 percent.
To calculate a percentage of a number, the percentage should first be converted to a decimal. To do that, the decimal is moved over two spaces to the left. For example, 55 percent is equal to .55. Then the decimal is multiplied by the number to find the answer. When trying to find 20 percent of any number, there is a shortcut method that doubles the original number and then moves the decimal point over one place. Therefore, 80 times 2 equals 160. Moving the decimal one place produces 16. Thus, 20 percent of an $80 check would be $16.
Learn MoreA fraction is converted to a percentage by first expressing the fraction with a denominator of 100, then writing the numerator with a percent sign behind it. Some fractions can be easily converted if basic ratio equivalents are known.
Full Answer >Twenty pounds converts to 9.07 kilograms. The metric system represented an attempt to bring standardization and sense to the imperial system, which had been in use throughout the British Empire and elsewhere. However, problems arose from a lack of standardization.
Full Answer >To round to the nearest tenth of a percent, a person must reduce two or more decimal points to one decimal point. For instance, a percentage of 82.34 is rounded to 82.3 percent, because 82.34 is closer to 82.3 than 82.4.
Full Answer >Twenty percent of 100 is 20. To calculate the percentage of a number, convert the percentage to a decimal number; move the decimal point two places to the left, and multiply by the number. The word percent means per 100.
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