Analyzing the Effects of Four Alternative inventory Methods (P7-2) Dixon Company uses a periodic inventory system. At the end of the annual accounting period. December 31 , the accounting records for the most popular item in inventory showed the following: Required: Compure the cost of (a) poods available for ule, (b) eding inventiry, and (c) goods sold at December 31 under each of the following inventary couting methods (chow computations and round to the nearet sollar): 1. Average cou (round averuge cost per unit to the nearest cent). 2. Firstin, firstout, 3. Lastin, fintowt