(Comprehensive EOQ calculations) Knutson Products Inc. is involved in the production of air- plane parts and has the following inventory, carrying, and storage costs: 1. Orders must be placed in round lots of 100 units. 2. Annual unit usage is 250,000. (Assume a 50-week year in your calculations.) 3. The carrying cost is 10 percent of the purchase price. 4. The purchase price is $10 per unit. 5. The ordering cost is $100 per order. 6. The desired safety stock is 5,000 units. (This does not include delivery-time stock.) 7. The delivery time is 1 week. Given the forgoing information: a. Determine the optimal EOQ level. b. How many orders will be placed annually? c. What is the inventory order point? (That is, at what level of inventory should a new order be placed?)