Efficient Percentage Calculator for Business and Daily Math Needs

A tool that calculates percentages, increases, decreases, and proportions between numbers, helping users quickly solve common mathematical calculations in business and daily life.

Percentage Calculator

Calculate percentages, find what percent one number is of another, and compute percentage changes between values.

What is %
of
Result
is what percent of
%
What is the percentage increase/decrease from
to
%
What is a percentage?

In mathematics, a percentage is a number or ratio that represents a fraction of 100. It is denoted by the symbol "%". For example, 35% is equivalent to the decimal 0.35 or the fraction 35/100.

Percentage Formulas
Basic Formula

P × V1 = V2, where P is the percentage (in decimal form), V1 is the value to calculate the percentage of, and V2 is the result.

Calculator Tips
  • Use tab to move between fields
  • Enter numbers with or without decimals
  • Results are rounded to 2 decimal places
  • Percentage change can be positive or negative
  • Press enter to calculate quickly

Frequently Asked Questions

A percentage represents a fraction of 100. It is one way to express a dimensionless relationship between two numbers.

To calculate X% of a number Y, multiply Y by (X/100).

To find what percent X is of Y, divide X by Y and multiply by 100.

Percentage change shows how much a value has increased or decreased relative to the original value, expressed as a percentage.

Percentages are used in many real-world situations including discounts, interest rates, statistics, and data analysis.