Tuesday, February 3, 2009

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. 87 * 68 = 5916)
  • Divide the answer by 100 (Move decimal point two places to the left) (e.g. 5916/100 = 59.16)
  • Round to the desired precision (e.g. 59.16 rounded to the nearest whole number = 59)

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)

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