Number Tools

Percentage Calculator

This calculator handles the most common percentage questions used in work, pricing, reporting, and quick planning.

Percentage calculator

Value A

Value B

What this tool does

Calculate percentages, percentage increase, and percentage decrease.

Useful for

Check discount math
Measure growth and decline
Calculate percentage of totals

Quick tips

Use the correct formula for change, not just percentage of a number.
Double-check the base value when comparing periods.

Related tools

Helpful reading