Operations / Supply Chain
Inventory Turns / Days of Inventory ITR, DIO, DOH
How many times you sell through and replace your stock in a year, and the same fact expressed as days of inventory sitting on hand.
The fork, why two teams get different numbers
The numerator forks: COGS (cost basis, the correct one) versus SALES/revenue (retail habit), and sales-based turns run higher than cost-based by the whole gross margin on identical stock.
In the Metric Library
- The full fork, both definitions worked all the way through
- The trap that makes the number lie, on a real export
- Every formula variant, spelled out
- The reconciliation anchor, what to tie it to and when to refuse
Reference: APICS/ASCM inventory management · GAAP inventory (COGS basis) · SCOR asset-management metrics