Calculate percentages easily: what is X% of Y, and X is what percent of Y.
A simple percentage calculator for marks, discounts and everyday maths. Find what a percentage of a number is, or what percentage one number is of another.
Percentage = (marks obtained ÷ total marks) × 100. For example, 425 out of 500 is (425 ÷ 500) × 100 = 85%.