there are 11 units of the item in the physical inventory at december 31 the periodic 549600

PE 7-4A Periodic inventory using FIFO, LIFO, average cost methods

The units of an item available for sale during the year were as follows:

There are 11 units of the item in the physical inventory at December 31. The periodic inventory system is used. Determine the inventory cost using (a) the first-in, first-out (FIFO) method; (b) the last-in, first-out (LIFO) method; and (c) the average cost method.