一、Accounting for materials
1.① EOQ
①Co=cost of placing one order
Ch= holding cost per unit
D=demand per annum
Q=re-order quantity
Annual stockholding
Costs =
Annual stock ordering=
②EBQ
一边生产一边消费
②Q=batch size
D=demand per annum
Ch=苹果有维生素c吗
cost of holding one unit for one year
Co=cost of tting a batch ready to be produce
R=annual replenishment rate
2.Stock control system
①.minimum stock level
reorder level – (average usage average lead time)
② maximum stock level
Maximum level = reorder level + reorder quantity – (minimum usage minimum lead time)
③ average inventory = safety inventory +
④ free inventory=physical inventory + inventory on order – inventory requisitioned (not issued)
