Percentage
Tips for Percentage
1. Finding the Percent of a Number
To determine the percent of a number, do the following steps:
Multiply the number by the percent (e.g. 31 * 56 = 1736)
Divide the answer by 100 (Move decimal point two places to the left) (e.g. 1736/100 = 17.36)
Round to the desired precision (e.g. 17.36 rounded to the nearest whole number = 17)
2. Determining Percentage
Example: 68 is what percent of 87?
Divide the first number by the second (e.g. 68 ?87 = 0.7816)
Multiply the answer by 100 (Move decimal point two places to the right) (e.g. 0.7816*100 = 78.16)
Round to the desired precision (e.g. 78.16 rounded to the nearest whole number = 78)
Follow the answer with the % sign (e.g. 68 is 78% of 87)
3. Converting a Fraction to a Percent
Do the following steps to convert a fraction to a percent:
For example: Convert 4/5 to a percent.
Divide the numerator of the fraction by the denominator (e.g. 4 ?5=0.80)
Multiply by 100 (Move the decimal point two places to the right) (e.g. 0.80*100 = 80)
Round the answer to the desired precision.
Follow the answer with the % sign (e.g. 80%)
4. Converting a Percent to a Fraction
Do the following steps to convert a percent to a fraction:
For example: Convert 18% to a fraction.
Remove the Percent sign
Make a fraction with the percent as the numerator and 100 as the denominator (e.g. 18/100)
Reduce the fraction if needed
5. Converting a Decimal to a Percent
Do the following steps to convert a decimal to a percent:
For example: Convert 0.18 to a percent.
Multiply the decimal by 100 (e.g. 0.18 * 100 = 18)
Add a percent sign after the answer (e.g. 18%)
6. Converting a Percent to a Decimal
Do the following step to convert a percent to a decimal:
For example: Convert 18% to a decimal.
Divide the percent by 100 (e.g. 18 ?100 = 0.18)
