Please help with part b

Monty Distribution markets CDs of numerous performing artists. At the beginning of March, Monty had in beginning inventory 2,600 CDs with a unit cost of \$7. During March Monty made the following purchases of CDs. During March, 10,950 units were sold. Monty uses a periodic inventory system. (a) Determine the cost of goods avalable for sale. The cost of goods available for sale s Determine (1) the ending inventory and (2) the cost of goods sold under each of the assumed cost flow methods (FIFO, LIFO, and average-cost). (For calculation purposes, round overage cost per unit to 3 decimal places, eg. 5.275. Round answers to 0 decimal places, eg. 125.)