Inventory Cost Rate
What is the Inventory Cost Rate?
Inventory cost rate describes the ratio of warehousing costs to the average inventory value and indicates how efficiently a warehouse is operated from a financial perspective.
Formula
(Storage costs ÷ average inventory value) × 100
Example
Storage costs: €200,000
Inventory value: €1,000,000
→ Inventory cost rate = 20%
Benchmarks
- 15–25% → typical
- > 30% → inefficient
Significance
This KPI shows:
- capital tied up in inventory
- efficiency of warehouse operations
- optimization potential
Causes of high Costs
- high inventory levels
- inefficient processes
- low level of automation
Optimization
- inventory reduction
- process optimization
- automation
Typical Mistakes
👉 Costs are often considered in isolation without taking service levels into account.
Relation to other KPIs
Practical Example
Reduction from 28% to 19%:
→ significant cost savings
❓ FAQ
What belongs to inventory costs?
Personnel, rent, IT, depreciation, etc.
How often should I measure?
Monthly or quarterly.
Conclusion
The inventory carrying cost rate is a key metric for the financial management of warehouse operations.