there are 16 units of the item in the physical inventory at december 31 the periodic 549612

EX 7-8 Periodic inventory by three methods

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

There are 16 units of the item in the physical inventory at December 31. The periodic inventory system is used. Determine the inventory cost by (a) the first-in, first-out method, (b) the last-in, first-out method, and (c) the average cost method.