Percentage Calculator: Solve Any Percentage Problem
Calculate percentages, find percent of a number, determine percentage change, and solve for missing values in percentage equations.
What It Does
The Percentage Calculator solves three common percentage problems: what is X percent of Y, what percentage is X of Y, and percentage change from one number to another. Results update instantly as you type and include the calculation formula.
How to Use It
Choose the type of calculation you need from the tabs. Enter the known values in the fields provided. The answer appears instantly along with the formula used. Clear and try different values for comparison.
Tips & Tricks
For percentage change, remember that the order matters: change from 100 to 150 is positive 50% but from 150 to 100 is negative 33.3%. Use the calculator to verify discount and markup calculations. Double-check tip calculations by computing both the percentage and the total.
Use Cases
Students check percentage homework and learn the formulas. Shoppers calculate discount savings and final prices. Business owners determine profit margins and markup percentages.
Try Percentage Calculator Now
Ready to get started? Use this free tool directly in your browser — no sign-up required.
Open Percentage Calculator