hello, i just need help calculating part B

Lily Distribution markets CDs of the performing artist Unique. At the beginning of October, Lily had in beginning inventory 2.000 of Unique's CDs with a unit cost of $7. During October, Lily made the following purchases of Unique's CDs. Oct. 3 2,500 @ $8 Oct. 193.000 Oct. 93,500 @ $9 Oct.254.000 During October, 10,750 units were sold. Lily uses a periodic inventory system (a) Your answer is correct Determine the cost of goods available for sale. Cost of goods available for sale $ e Textbook and Media Attempts: 1 of 3 used (61) Your answer is correct. Calculate cost per unit. (Round answer to 2 decimal places, e.g. 2.25.) Cost per unit 9.30 (51) Your answer is correct. Calculate cost per unit. (Round answer to 2 decimal places, e.g. 2.25.) Cost per unit $ 9.30 e Textbook and Media Attempts: 1 of 3 used (52) 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). (Round answers to 0 decimal places, e.g. 1,250.) FIFO The ending inventory $ The cost of goods sold $