Dixon Company uses a periodic system, At the end of the accounting period, December 31, 2014, the accounting records for the most popular item in inventory showed the following: Required: Compute the cost of goods available for sale, ending inventory, and goods sold at December 31, 2014, under each of the following inventory costing methods (show computations and round to the nearest dollar): Average cost (round average cost per unit to the nearest cent). First in; first-out Last in; first out. Specific identification, assuming that the first sale was selected two-fifths from the beginning inventory and three-fifths from the purchase of February 20, 2014. Assume that the seconds sale was selected from the remainder of