Sladstone Limited tracks the number of units purchased and sold throughout each accounting period but applies its inventogy costing method at the end of each period, as if it uses a periodic inventory system. Assume its accounting records provided the following information at the end of the annual accounting period. December 31 . Required: 1. Compute the amount of goods avalabie for sale, ending inventory, and cost of goods sold at Decemiber 31 , under each of the following inventory costing methods. For Specific identification, assuming that the March 14 , sale was selected twa-fifth from the beginning inventory and three-fiths from the purchase of January 30 . Assume that the sale of August 31 was seiected lrom the temainder of the beginning imventory, with the balance from the purchase of Mayt. (Do not round Weighted overage cost per unit. Round your final answers to the neerest doller amouns