Chapter 6, Problem 6.2DIR

(a)

To determine

Periodic Inventory System: It is a system in which the inventory is updated in the accounting records on a periodic basis such as at the end of each month, quarter or year. In other words, it is an accounting method which is used to determine the amount of inventory at the end of each accounting period.

In First-in-First-Out method the cost of initial purchased items are sold first. The value of the ending inventory consists the recent purchased items.

The cost of goods sold under periodic inventory system using FIFO, LIFO, and average-cost method.

(b)

To determine

In Last-in-First-Out method the cost of last purchased items are sold first. The value of the closing stock consists the initial purchased items.

The cost of goods sold under periodic inventory system using LIFO.

(c)

To determine

In Average Cost Method the cost of inventory is priced at the average rate of the goods available for sale. Following is the mathematical representation to determine average cost method:

$\text{Weighted-average Cost}=\frac{\text{Total}\text{Cost of Goods Available For Sale}}{\text{Total number of units Available for Sale}}$

The cost of goods sold under periodic inventory system using average-cost method.