Calculating percentages is a key concept in mathematics. Percentage calculations are important in all forms of mathematics including algebra, geometry and calculus. They're also utilized in many sciences such as chemistry, physics and biology.
Know MoreDetermine which numbers are your part and your whole. Your whole number is the number that equals 100 percent. The part is the number that you're trying to find how many percents of the whole number it takes up.
Divide the part number variable into the whole number variable to obtain a decimal.
Multiply your decimal by 100 to convert the decimal into a percentage. Add a percent sign.
A percentage is a math term that allows for a comparison of one amount in relation to another. Computing a percentage involves division and simple decimal conversion, according to Calculator Soup.
Full Answer >To add a percentage to a given number involves multiplying the base number by a decimal that represents the percentage fraction. Adding two percentages together involves the opposite, or converting the percentages to fractions.
Full Answer >To subtract a percentage, one starts by converting the percentage into its decimal equivalent and subtracting the result from one. Multiplying the answer by the original figure gives the value after subtracting the percentage. For instance, to subtract a tax of 27 percent from base pay, one coverts the percentage to 0.27 or (27/100). Basic pay x (1 - 0.27) gives the pay after the tax deduction.
Full Answer >A decimal number can be transformed into a percentage by multiplying it by 100. If the number is a fraction, it is first necessary to convert it into a decimal by dividing the numerator by the denominator.
Full Answer >