Percentage Change Calculator - Calculator See


Percentage Change Calculator

Calculate percentage change, relative difference, and delta between two values, indicating both increase and decrease.

Calculator Inputs

Original baseline number.
New number.

Calculated Results

Percentage Change
-16.67% Decrease
Direction of Change Decrease (-)
Absolute Difference -10.00
Change Ratio 0.8333
Values calculate live as you adjust inputs.

About Percentage Change Calculator

Computes relative percentage delta showing whether a metric increased or decreased between two observation points.

What is Percentage Change Calculator?

Computes relative percentage delta showing whether a metric increased or decreased between two observation points.

How to Use This Calculator

  1. Enter initial value V1 and new value V2.
  2. Review percentage change and direction.

The Mathematical Formula & Variables

Delta % = ((V2 - V1) / |V1|) * 100%

Step-by-Step Worked Example

Scenario: Value drops from 60 to 50.

  1. Delta = 50 - 60 = -10.
  2. Divide by |60| = -10 / 60 = -0.1667.
  3. Multiply by 100 = -16.67%.

Result: -16.67%

Frequently Asked Questions

Why is the absolute value taken in the denominator?

Taking |V1| in the denominator ensures that moving toward positive numbers is always reported as a positive increase, even if V1 was negative.