Demand is variable and the company wants to build a safety stock into R. The average daily demand is 15, the lead time is 3 days, Z-value is 2, and the standard deviation of demand during lead time is 5. Items purchased from a vendor cost $300 each. The firm operates 350 days. If it costs $10 every time an order is placed for more units, and the storage cost is $5 per unit per year. What is the reorder point