Glee Distribution markets CDs of the performing artist Unique. At the beginning of October, Glee had in beginning inventory 2,640 of Unique's CDs with a unit cost of $7. During October, Glee made the following purchases of Unique's CDs. Oct. 3 Oct. 9 3,300 @ $8 4,620 @ $9 Oct. 19 3,960 @ $10 Oct. 25 5,280 @ $11 During October, 14,388 units were sold. Glee uses a periodic inventory system. (a) Determine the cost of goods available for sale. Cost of goods available for sales