Find a percentage of a number, or what percent one number is of another.
Use the first pair of boxes for questions like 'what is 15% of 200', and the second pair for 'what percent of 80 is 20'.
Multiply Y by X and divide by 100. For example, 15% of 200 is 200 × 15 ÷ 100 = 30.
Divide A by B and multiply by 100. For example, 20 out of 80 is 20 ÷ 80 × 100 = 25%.