LAST UPDATE: September 24th, 2020 Calculate Percent of a Number Percent (%) Of Percentage of the number 24.42 Reset Calculate what percent 62.5 % Reset Calculate percent of what is _____ percent of what? 125 % Reset More percentage calculators Percentages Percentage increase Percentage decrease Percentage change Percentage error 1) What is 10% of 14? Always use this formula to find a percentage: % / 100 = Part / Whole replace the given values: 10 / 100 = Part / 14. Cross multiply: 10 x 14 = 100 x Part, or. 140 = 100 x Part . Now, divide by 100 and get the answer: Part = 140 / 100 = 1.4 Ka2m.