Percentage Calculator
Free online percentage calculator. Find what percent one number is of another, calculate percentage increase or decrease, and solve everyday percentage problems.
About this tool
Percentages appear in everyday situations: discounts, tips, taxes, interest rates, grades, and statistical comparisons. This calculator handles the three most common percentage problems without requiring you to remember formulas.
For a shopping discount, use Percent of value. To compare two numbers, use What percent is value?. To track growth or loss over time, use the increase and decrease modes.