ROI Calculator 計算機

この計算機は扱います: Calculate net gain and return on investment percentage from gain and cost.

Business 更新 2026-05-11

入力

Gain or ending value ($) Cost or starting value ($)

Net gain ($) 値を入力して計算します。

ROI (%) 値を入力して計算します。

ROI = (gain - cost) / cost x 100.

この計算機は扱います: Calculate net gain and return on investment percentage from gain and cost.

13200 gain on 10000 cost gives 32% ROI.

Use the same time period when comparing ROI numbers.

Fees, taxes, and risk are not included in this simple ratio.

What inputs does this calculator need?

Gain or ending value, Cost or starting value.

How should I round the result?

Keep extra digits while comparing values, then round for the final decision or report.

Can I reuse the result in another calculation?

Yes, but preserve the original inputs and units so the next calculation stays traceable.