MihsabaHow to use
Calculate gross margin return on inventory investment by dividing gross margin dollars by average inventory cost.
- Enter Gross margin dollars.
- Enter Average inventory cost.
- Calculate, then review the metric definition and comparison limits.
How it is calculated
Example
Gross margin dollars of 120,000 and average inventory cost of 60,000 give GMROI of 2.
Important notes
Use average inventory at cost and gross margin for the same period. Do not mix retail-value inventory with cost-basis inventory.
Worked examples and interpreting results
Gross margin dollars of 120,000 and average inventory cost of 60,000 give GMROI of 2.
| Case | Calculation | Result |
|---|---|---|
| GMROI | 120000 ÷ 60000 | 2 |
| 80,000 inventory scenario | 120000 ÷ 80000 | 1.5 |
How to check the result
Use average inventory at cost and gross margin for the same period. Do not mix retail-value inventory with cost-basis inventory.
Frequently asked questions
Is GMROI the same as inventory turnover?
No. Turnover compares cost of goods sold with average inventory; GMROI compares gross margin dollars with inventory cost.
Should the inputs use the same period?
Yes. Use figures from the same reporting period and accounting definition so balances and flows remain comparable.
Is the result enough for a decision?
No. The metric summarizes a numerical relationship; compare it with company history, industry context, and accounting or operating policies.