Under the current daily demand pattern, what is the annual demand rate (D) ?

Under the ordering policy currently in use, what is the average number of orders per year and the average annual ordering cost?

Inventory System Problem Parameters Daily demand for an an inventory item is normally distributed with average value of 34 units per day The standard deviation of daily demand is 4 The item is used 365 days per year We buy the item for $90 per unit Each time we order, we incur fixed ordering costs of $175 per order Our annual carrying cost rate is 25% When we order replenishment inventory, the order lead time is 6 days The ordering policy currently being used is: Whenever inventory position falls to R=230 units, an order is placed for Q=660 units