Percentage Change Calculator

Measure percentage increase or decrease between two values.

Enter a value for all required fields.

この計算機について

Measure percentage increase or decrease between two values.

How to use

  1. Enter the required values.
  2. Review the result instantly.

Formula

((New − Old) ÷ |Old|) × 100

Example

100 → 120 = 20% increase

FAQ

Why is the old value required to be nonzero?

The formula divides by the old value, so zero would make the result undefined.

Can the result be negative?

Yes. A negative result means the value decreased.

結果は参考情報です。重要な計算は必ずご自身で確認してください。