Work out any percentage in seconds. Enter a percent and a value to instantly see the result, plus the value with the percentage added and subtracted.
A percentage is a fraction of 100. To find X% of a value, the calculator multiplies the value by X and divides by 100. Enter both numbers and the answer updates instantly, along with the value plus and minus that percentage - handy for discounts, tips and tax. For shopping, our discount calculator shows the final price, and our sales tax calculator adds tax to a total.
10% is just moving the decimal one place left, and 5% is half of 10%. To find what percent A is of B, divide A by B and multiply by 100. For splitting a restaurant bill, our tip calculator does the work for you.