# Return on Investment

> YogoQ Core AI-readable term handoff. Preview, read-only, Reviewed/Verified only.

- Canonical URL: https://core.yogoq.com/en-US/core/roi
- Locale: en-US
- Content tier: gold_fallback
- Quality: reviewed
- Publication status: published_reviewed
- Schema version: core-reviewed-term-ai-handoff-v2
- Compatible with: core-reviewed-term-ai-handoff-v1
- Content hash: d3638177b2eb63fd6a4773f5cb88ebbd71a8fdab0b26d4e853720243acde60f8
- Trust policy: core-trust-policy-v1-2026-06-22

## Short Definition

ROI measures investment efficiency by comparing return with the cost invested.

## 一言でいうと

ROI measures investment efficiency by comparing return with the cost invested.

## 計算方法

- Basic formula | ROI = (gain from investment - investment cost) / investment cost | Measures investment efficiency

## 含めるもの / 含めないもの

- Include | Investment cost, direct gain, period, required operating cost | They define efficiency
- Exclude | Unsupported future benefits, other initiatives' gains, unrecoverable assumptions | They overstate return

## 意味

ROI compares initiatives or investments on a shared basis. Period, cost scope, return definition, and risk must be aligned.

## 役立つ場面

- Use it to compare ads, hiring, systems, or improvement initiatives.

## 使い方のポイント

- Compare alternatives with the same period, cost scope, and return definition.

## 変動要因 / ドライバー

- Profit gain / cost reduction | Increases numerator | Raises ROI
- Investment cost / payback period | Denominator and time risk | Drives decision quality

## 判断するときの注意点

- High ROI still needs checks for scale, payback timing, and risk.

## よくある誤解 / 落とし穴

- Using only easy short-term gains can miss long-term risk and quality loss.

## 最小例

Example: investing 1 million yen and gaining 1.3 million yen gives 30% ROI.

## 似ている言葉との違い

- CAC | Customer acquisition cost | ROI measures broader investment efficiency
- Cash Flow | Cash movement | ROI is an efficiency ratio

## Aliases

- Return on Investment (display_name, en-US)
- ROI (abbreviation)
- ROI (english_name, en-US)
- ROI（投資利益率） (localized_title, ja-JP)
- Return on Investment (english_name, en-US)

## Relations

- Cash Flow: compare (https://core.yogoq.com/en-US/core/cash-flow)
- Customer Acquisition Cost: related (https://core.yogoq.com/en-US/core/customer-acquisition-cost)
- Customer Lifetime Value: related (https://core.yogoq.com/en-US/core/customer-lifetime-value)

## RAG Chunks

- core:chunk:roi:en-US:definition:9d092ff138e51f88
- core:chunk:roi:en-US:formula:3d017f360899f0ca
- core:chunk:roi:en-US:boundary:17a20c35c4d2724b
- core:chunk:roi:en-US:meaning:3d5147f75a7a92af
- core:chunk:roi:en-US:usage:68e1d22485cb8940
- core:chunk:roi:en-US:usage:df04d246f7d0c2d9
- core:chunk:roi:en-US:drivers:677a0c8dc8fd2064
- core:chunk:roi:en-US:misunderstandings:25df9d17cfb6c09f
- core:chunk:roi:en-US:misunderstandings:ecce05243b518a5a
- core:chunk:roi:en-US:examples:768889853b7ff0b6
- core:chunk:roi:en-US:comparisons:2f7c39a52c9f222a
- core:chunk:roi:en-US:faq:cdbf8c24e171bfd9

## FAQ

### Can ROI alone decide an investment?

No. Also check payback, risk, cash flow, and strategic importance.

## Sources

- YogoQ Core business foundation editorial baseline

## Limitations

This page is reference information for research and learning. For accounting, legal, finance, health, security, or other individual decisions, confirm against primary sources or qualified professionals.

- Public pages support general understanding and practical context; they are not professional advice for individual cases.
- Fast-changing information such as regulations, accounting standards, prices, product specs, and legal requirements should be checked against primary sources before final decisions.
- Even when AI-assisted drafting or audit is used, publication relies on quality gates and human-readable evidence.