为什么除以的不是平均的存货？

问题如下：

A retail company is comparing different approaches to valuing inventory. The company has one product that it sells for $50.

Which inventory accounting method results in the lowest inventory turnover ratio for the first quarter?

选项：

A.Periodic LIFO B.Perpetual LIFO C.Perpetual FIFO

解释：

Solution

A is correct. In an environment with falling inventory costs and declining inventory levels, periodic LIFO will result in a higher ending inventory value and lower cost of goods sold versus perpetual LIFO and perpetual FIFO methods. This results in a lower inventory turnover ratio, which is calculated as follows:Inventory turnover ratio = Cost of goods sold/Ending inventory

The inventory turnover ratio using periodic LIFO is $39,000/$16,000 = 244% or 2.44 times.

The inventory turnover ratio using perpetual LIFO is 279% or 2.79 times, which is provided in Exhibit 1 (= 40,500/14,500 from previous question).

The inventory turnover for perpetual FIFO is $41,400/$13,600 = 304% or 3.04 times.