CalculatorCast

変化率計算機

ある値から別の値への変化率(%)を計算します。

はじめに

Percent Change Calculator — Calculate the percent change from one value to another. Enter Original value, New value to get an instant, accurate result.

計算式

Percent change = ((new value − original value) / |original value|) × 100.

ステップごとの説明

  1. Enter the Original value.
  2. Enter the New value.
  3. Click Calculate to see your result instantly.

実例

Example: With Original value = 100, New value = 150, the Percent Change Calculator gives Percent Change: 50.

よくある質問

What if the original value is 0?
Percent change is undefined when the original value is 0, so no result is returned.
Can percent change be negative?
Yes — a negative result means the value decreased.
What inputs does the Percent Change Calculator need?
You'll need to provide: Original value, New value. All fields use sensible defaults, so you can see a working example immediately and then adjust the values to match your own numbers.
How accurate is the Percent Change Calculator?
The Percent Change Calculator applies the formula exactly as calculated — Percent change = ((new value − original value) / |original value|) × 100. — so results are precise for the inputs you provide. Accuracy depends on entering correct, realistic input values.
Is the Percent Change Calculator free to use?
Yes, the Percent Change Calculator is completely free, requires no signup, and runs instantly in your browser.

変化率計算機について

The Percent Change Calculator uses a real, verifiable formula — Percent change = ((new value − original value) / |original value|) × 100. — so results are accurate every time, not an approximation.