Date Activities Units Acquired at Cost Units Sold at Retail Mar. 1 Beginning inventory 120 units @ $51.40/unit Mar. 5 Purchase 235 units @ $56.40/unit Mar. 9 Sales 280 units @ $86.40/unit Mar. 18 Purchase 95 units @ $61.40/unit Mar. 25 Purchase 170 units @ $63.40/unit Mar. 29 Sales 150 units @ $96.40/unit Totals 620 units 430 units Compute cost of goods available for sale and the number of units available for sale Compute the number of units in ending inventory. Compute the cost assigned to ending inventory using (a) FIFO, (b) LIFO, (c) weighted average, and (d) specific identification. For specific identification, the March 9 sale consisted of 75 units from beginning inventory and 205 units from the March 5 purchase; the March 29 sale consisted of 55 units from the March 18 purchase and 95 units from the March 25 purchase. Compute gross profit earned by the company for each of the four costing methods