1. Carrying Cost of Inventory = Inventory Carrying Rate * Average Inventory Value

2. Sales Forecast Accuracy = min(Forecast, Sales) / Max(Forecast, Sales)

3. Days Inventory Outstanding = Inventory No / Average monthly Sales

4. Sales to Inventory Ratio = Sales Value / Inventory Value ........(with similar currency unit)

5. Inventory Turnover => Measure how many times a year organizations able to sell your entire inventory

6. Order to Cash => Days after orders that money comes back to company

etc.