Find a percentage of a number, express one number as a percentage of another, or calculate percentage change.
Most real-world percentage questions fall into one of three shapes: finding a share of a number, expressing one number as a share of another, or measuring how much something has grown or shrunk. This calculator covers all three at once, so you don't need to remember which formula to rearrange.
Use the first box: X is the discount percentage, Y is the original price. Subtract the result from Y to get the sale price.
A negative result means the "to" value is lower than the "from" value — a decrease rather than an increase.