Percentage calculations come into play in many real-world situations, such as determining how much to tip in a restaurant and figuring out the discounted prices of clothing. Here's how to do these calculations. More »

To calculate percentage, divide the number that is to be expressed as a percentage by the total or whole. The resulting number is then multiplied by 100 to obtain the percentage. More »

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. More »

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Two-fifths is equivalent to 40 percent. Dividing the numerator, 2, by the denominator, 5, yields a decimal value of 0.40. Decimal values can be converted to percentages by multiplying by 100, which means that 0.40 is equ... More »

To convert a percentage to a ratio, write out the percentage number as a fraction, reduce the fraction to its simplest form and convert the new fraction to a ratio by replacing the slash mark with a colon. Converting a p... More »

To add a percentage to a number, change the percentage to a decimal value, and add one to the value. Multiply the number by the result. More »

To find the percentage of a number, multiply the number by the percentage fraction. A percentage is a proportion between two quantities expressed in hundredths. More »

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