Periodic imentory by three methods; cost of poods sold The units of an item avoiable for sale during the year were as follows: There are 80 units of the item in the phivical invendory at Dectemper 31 . The periodic inventory svstem is used. Determine the ending inventory cost and the cost of goods sold by three methods, In vour calculations round average unit cast to the nearest cent, and round all ether calculations and your final answers to the nearest doltar. fother avaliste fer saie