About this calculator

A focused reference tool for everyday before-and-after percentage questions.

One job, explained clearly

Percentage Increase Calculator helps people compare two values, apply a known increase, or work backward to an original number. It is designed for general arithmetic involving prices, salaries, counts, measurements, and other everyday quantities.

The calculator shows more than a final percentage. It also provides the difference, multiplier, and working so readers can understand the result.

Written for a general US audience

Examples use familiar US number and currency formats. The formulas themselves are not country-specific. Important decisions involving tax, contracts, investments, employment, or official reporting should be checked against the relevant rules.

Who writes the site

The guides are written by Nikita Mondal. Each explanation starts from its own question and includes a worked calculation rather than relying on unsupported claims.

Use the percentage increase calculator