ABC Distribution markets CD's of the performing artist. Beginning inventory of 2,000 at $7. They made the following purchases: oct.3- 2,500 at $8. oct 9 - 3,500 at $9 oct 19- 3,000 at $10 and oct 25- 4,000 at $11. determine the ending inventory and the cost of goods for FIFO, LIFO and Average Cost inventory cost flow methods.​