Demand model

Mean daily demand: 40 units/day Demand std dev: 10 units/day

Policy inputs

Lead time: 5 days Ordering cost S: $75 /order Holding cost H: $3.00 /unit/yr Target service level: 95% (z=1.65)

Playback

Simulation speed: 1×

Policy (recomputed live)

Order quantity Q (EOQ)—

Reorder point R—

Safety stock—

Order-up-to (R+Q)—

Live simulation stats

Day0

On-hand inventory—

Fill rate achieved—

Stockout days0

Orders placed0

Holding cost so far$0

Ordering cost so far$0

Total cost so far$0

Daily demand is sampled from a real normal distribution (mean/std above, floored at 0 and rounded). When the inventory position (on hand + on order) drops to or below R, a real order of size Q is placed and arrives exactly one lead time later. Stockout days (red markers) occur when demand exceeds available stock.