P6-2A Express Distribution markets CDs of the performing artist Fishe. At the beginning of October, Express had in beginning inventory 2,000 of Fishe's CDs with a unit cost of $7. During October, Express made the following purchases of Fishe's CDs. Oct. 3 2,500@ $8 Oct. 9 3,500@ $9 Oct. 19 3,000 @ $10 Oct. 25 4,000 @ $11 During October, 10,900 units were sold. Express uses a periodic inventory system. Instructions (a) Determine the cost of goods available for sale. (b) Determine (1) the ending inventory and (2) the cost of goods sold under each of the LIFO, and average-cost). Prove the accuracy of the (c) Which cost flow method results in (1) the highest inventory amount for the balance assumed cost flow methods (FIFO, cost of goods sold under the FIFO and LIFO methods. sheet and (2) the highest cost of goods sold for the income statement