Swifty Bookstore had 500 units on hand at January 1. costing $ 9 each. Purchases and sales during the month of January were as follows: Date Purchases Sales Jan 14 395@$ 15 17 240 @ $8 25 240 @$ 10 29 240 @$17 Swifty does not maintain perpetual inventory records. According to a physical count, 345 units were on hand at January 31, The cost of the inventory at January 31, under the FIFO method is