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 Let's say the question is: What is 10% of 200?. Here's how to do it: Change the percentage figure into a decimal by dividing the figure by 100. So, 10% becomes 10/100 = 0.1. Multiply the decimal figure by the full amount. So, 0.1 x 200 = 20. This gives you your answer. 10% of 200 is 20. The formula for this calculation looks like this: What percentage of is ? is % of what amount? How much is + % ? How much is - % ? What is the percent change from to ? Use Alcula's percentage calculator to compute percentages and answer questions such as: How much is 7% of 25000? What percentage of 10000 is 120? 250 is 8 percent of what amount? 9VZdC.