Percentage Calculator

Percentages are used in almost every area of daily life — from calculating a discount in a sale to working out a pay rise, understanding VAT, or comparing test scores. Our free percentage calculator handles four common types of percentage calculation: finding what percentage one number is of another, calculating a percentage of a given number, working out the percentage change between two values, and adding or removing a percentage from a number. Each calculation shows the formula used so you can understand the maths, not just the answer. Whether you need to calculate a 20% VAT amount, work out how much you save in a sale, or find the percentage increase in your salary, this tool gives you instant, accurate results.