Sunland Bookstore had 480 units on hand on January 1, costing $9 each. Purchases and sales during the month of January were as follows: Date Purchases Sales Jan. 14 425 @ $13 17 280 @ $10 25 280 @ $11 29 220@ $15 Sunland does not maintain perpetual inventory records. According to a physical count, 395 units were on hand On January 31. The cost of the inventory on January 31, under the FIFO method is