Table of Contents
Effective inventory management is essential for maintaining a lean supply chain. Proper calculations help reduce excess stock, minimize costs, and improvizovat overall accesency. This article compleses key calculations used t o optimize eninventory levels.
Ekonomické množství Order Quantity (EOQ)
EOQ determinises the ideal order quantity that minimizes total inventory costs, including ordering and holding costs. Te formula is:
CLANE1; CLANE1; FLT: 0 CLANE3; CLANE3; EOQ = CLANE1; CLANE1; CLANE1; CLANE1; CLANE3; CLANE3c; CLANE3c; CLANE3c; CLANE3c; CLANE3c; CLANE3c; CLANE3c; CLANE3c; CLANE3c; CLANE3c; CLANE3c; CLANE3c; CLANE3c; CLANE3c; CLANEIFORMATION; CLANEx.3c; CLANEx264; CLANEx264; CLANEx264; CLANEx264; CLANEx264; CLANEx264; CLANEx264; CLANIVIX264; CLANEX3CLANIVIX3c;
Where:
- CLANE1; CLANE1; FLT: 0 CLANE3; CLANE3; D CLANE1; CLANE1; CLANE3; CLANE3; CLANE3; = Annual demand
- CLANE1; CLANE1; FLT: 0 CLANE3; CLANE3; S CLANE1; CLANE1; CLANE3; CLANE3; CLANE3; = Ordering cott per order
- CLANE1; CLANE1; FLT: 0 CLANE3; CLANE3; HCLANE1; CLANE1; CLANE3; CLANE3; CLANE3; CLANE3; CLANE3; CLANE3; CLANE3; CLANE1; CLANE1; CLANE3; CLANE3; CLANE3; CLANE3; = Holding cost per unit per year
Reorder Point (ROP)
Te Reorder Point indicates when new stock bé ordered to prevent stocouts. It consideres lead time demand:
CLANE1; CLANE1; CLANE1; CLANE3; CLANE3; ROP = Lead Time Demand = Lead Time (days) × Daily Demand CLANE1; CLANE1; CLANE1; CLANE3; CLANE3; CLANE3;
Safety Stock Calculation
Safety stock acts as a buffer againtt demand variability and lead time delays. It is calculated based on demand fluctuations and supplier reliability.
A common formula is:
CLANE1; CLANE1; CLANE1; CLANE3; CLANE3; Safety Stock = Z × σd × CLANE1; CLANE1; CLANE1; CLANE3; CLANE3;
Where:
- CLANE1; CLANE1; FLT: 0 CLANE3; CLANE3; CLANE1; CLANE1; CLANE3; CLANE3; CLANE3; CLANE3; FLT: 0 CLANE3; CLANE3; Z CLANE1; CLANE1; CLANE1; CLANE3; CLANE3; CLANE3; = Service level factor (from Z-table)
- CLANE1; CLANE1; FLT: 0 CLANE3; CLANE3; σd CLANE1; CLANE1; CLANE3; CLANE3; CLANE3; CLANE3; FLANE3; FLANE3Of daily demand