Tune Football Helmets Company is considering changing the current inventory-control system for football helmets. The information regarding the helmets is given below:

a. The firm decides to use a fixed-period system to control the inventory, and to review the inventory every two weeks. At the beginning of the current week, D. J. Jones, the materials manager, checked the inventory level of helmets and found 450 units. 

There were no scheduled receipts and no back orders. How many units should be ordered? 

b. If the firm changes to a fixed-quantity system, what would the reorder point and the economic order quantity be? 

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Demand = 200 units/week Lead time = two weeks Order cost = $60/order Holding cost = $1.50/unit/yr Cycle service level = 95 percent Standard deviation of weekly demand = 60 Number of weeks per year = 52