PA7-1 (Algo) Analyzing the Effects of Four Alternative Inventory Methods in a Periodic Inventory Syster [LO73] Gladstone Company 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 information at the end of the annual accounting period, December 31 Assuming that for Specific identification method (item 1d) the March 14 sale was selected two-fifths from the beginning inventory and three-fifths from the purchase of January 30. Complete this question by entering your answers in the tabs below. Compute the amount of goods available for sale, ending inventory, and cost of goods sold at December 31 under each of the inventory costing methods. (Round intermediate calculations to 2 decimal places and final answers to the nearest whole dollar amount.) Complete this question by entering your answers in the tabs below. Of the four methods, which will result in the highest gross profit? Complete this question by entering your answers in the tabs below. Of the four methods, which will result in the lowest income taxes