Coronado Bookstore had 470 units on hand at January 1 , costing $8 each. Purchases and sales during the month of January were as follows: Coronado does not maintain perpetual inventory records. According to a physical count, 360 units were on hand at January 31. The cost of the inventory at January 31 , under the FIFO method is: $2880. $3650. $3490. $3880