← All utility tools

Business calculators · By AIXpress

Percentage Change Calculator

Calculate growth or decline from a positive starting value to a nonnegative new value.

Analysts comparing business metrics across two periods.

Free to use. Your inputs are processed in this browser and are not included in usage analytics.

How to use percentage change calculator

  1. Enter a positive original value and a nonnegative new value.
  2. Calculate the absolute difference and percentage increase or decrease.

What to know about the result

  • Percentage change = (new − original) ÷ original × 100; the original value is the denominator.
  • A decline produces a negative percentage. Zero and negative starting values are rejected because ordinary growth interpretation is ambiguous.

Related tools

For the next step, explore PDF tools and small business templates.