A company uses a periodic inventory system. At the end of the annual accounting period, December 31, the accounting records provided the following information for a product.
![1640_68-B-M-A-C-M (550).png](https://secure.tutorsglobe.com/CMSImages/1640_68-B-M-A-C-M (550).png)
Compute ending inventory and cost of goods sold under FIFO, LIFO, and average cost inventory costing methods.