Demand for a 48 oz container of a popular infant formula at Sam's Club is constant at 289 units per month. Sam's Club incurs a fixed order cost of $2,372 each time it places an order. The holding cost per unit per year is 17% of the purchase cost per unit of $59. Currently, Sam's Club orders 417 units whenever it places an order. The lead time to receive the order is 9 days. Assume Sam's Club operates 364 days, 52 weeks, and 12 months per year. Calculate the average time a unit spends in inventory in days for the current policy