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AAT L3 MMAC Formulas
Inventory formulas required for AAT's MMAC module at level 3
| Term | Definition |
|---|---|
| Minimum inventory level | Reorder - (Average usage x Average lead time) |
| Maximum inventory level | Reorder level + Reorder quantity - (Min usage x Min lead time) |
| Average inventory | Minimum inventory + 50% of reorder quantity |
| Reorder level | (Max usage x Max lead time) + Buffer inventory |
| Economic order quantity (EOQ) | The square root of (2 x Fixed cost per order x Annual demand in units) / Cost of holding one unit for one year |