About this Percentage Calculator
A percentage expresses a number as a fraction of 100, and it shows up everywhere: shopping discounts, exam scores, tax rates, tips and investment returns. This calculator handles the three questions people ask most โ what is X percent of Y, what percentage one number is of another, and how much something changed in percent terms.
Type any two numbers and the answer appears instantly. There is nothing to install and no account needed; every calculation runs privately in your browser, so you can use it on phone or desktop as often as you like.