Cullumber Distribution markets CDs of numerous performing artists. At the beginning of March, Cullumber had in beginning inventory 2.800 CDs with a unit cost of $8.00. During March, Cullumber made the following purchases of CDs. March 5 1,900 March 13 3,200 (a) $9.00 $10.00 March 21 Cost of goods available for sale $ March 26 Determine the cost of goods available for sale. Weighted-average cost per unit $ 5,200 During March 11,600 units were sold. Cullumber uses a periodic inventory system. 1,900 @ $11.00 $12.00 Calculate weighted-average cost per unit. (Round answer to 3 decimal places, e.g. 5.125.)