Scrappers Supplies tracks the number of units purchased and sold throughout each accounting period but applies its inventory costing method at the end of each period, as if it uses a periodic inventory system. Assume its accounting records provided the following nformation at the end of the annual accounting period, December 31. TIP: Although the purchases and sales are listed in chronological order, Scrappers determines the cost of goods sold after all of the urchases have occurred. Required: 1. Compute the cost of goods available for sale, cost of ending inventory, and cost of goods sold at December 31 under each of the following inventory costing methods: (Round "Cost per Unit" to 2 decimal places.) a. Last-in, first-out. b. Weighted average cost. c. First-in, first-out. d. Specific identification, assuming that the April 1 sale was selected one-fifth from the beginning inventory and four-fifths from the Compute the amount of goods available for sale, ending inventory, and cost of goods sold at De inventory costing methods. (Round intermediate calculations to 2 decimal places and final answe amount.)