Marlow Company uses a perpetual inventory system. It entered into the following calendar year 2011 purchases and sales transactions. Date Activities Units Acquired at Cost Units Sold at Retail 600 units @ $44/unit 200 units @ $40/unit 100 units @ $20/unit Jan. Feb. 10 Mar. 13 Mar. 15 Aug 21 Sept. 5 Sept. 10 400 units @ $75/unit Beginning inventory ......... Purchase.... Purchase............... Sales ............. Purchase ......... Purchase...... Sales ............ Totals .............. 160 units @ $60/unit 280 units @ $48/unit 200 units @ $75/unit 600 units 1.340 units Required 1. Compute cost of goods available for sale and the number of units available for sale. 2. Compute the number of units in ending inventory