roblem 5-4AA (Algo) Periodic: Alternative cost flows LO P3 Montoure Company uses a periodic inventory system. It entered into the following calendar-year purchases and sales transactions. Required: 1. Compute cost of goods avaliable for sale and the number of units available for sale. 2. Compute the number of units in ending inventory. 3. Compute the cost assigned to ending inventory using (a) FIFO, (b) LIFO, (c) weighted average, and (o) specific identification. For specific identification, units sold consist of 650 units from beginning inventory, 350 from the February 10 purchase, 250 from the March 13 purchase, 100 from the August 21 purchase, and 350 from the September 5 purchase. (Round your average cost per unit to 2 decimal places. Round your final answers to the nearest whole dollar amount) 4. Compute gross profit eamed by the company for each of the four costing methods. (Round your average cost per unit to 2 decimal places. Round your final answers to the nearest whole dollar amount.)