Ayayai Distribution markets CDs of numerous performing artists. At the beginning of March, Ayayai had in beginning inventory 4,100 CDs with a unit cost of $7. During March, Ayayai made the following purchases of CDs. During March 22,000 units were sold. Ayayai uses a periodic inventory system. Determine (1) the ending inventory and (2) the cost of goods sold under each of the assumed cost flow methods (FIFO, LIFO, anc average-cost). Prove the accuracy of the cost of goods sold under the FIFO and LIFO methods. (Round answers to 0 decimal places e.g. 1,250. Use weighted-average unit cost rounded to 3 decimal places for computations.).