Percentage Decrease Calculator

The starting number

The number after the decrease

How to Use

  1. Enter the original (higher) value in the first field.
  2. Enter the new (lower) value in the second field.
  3. Click Calculate to see the percentage decrease instantly.

Formula

Percentage Decrease

((Original − New) ÷ |Original|) × 100

About This Calculator

This free percentage decrease calculator helps you find how much a value has decreased in percentage terms. Results are calculated instantly with the formula shown for transparency.