Problem 5-3A (Algo) Perpetual: Alternative cost flows LO P1 Montoure Company uses a perpetual inventory system. It entered into the following calendar-year purchases and sales transactions. 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. 3. Compute the cost assigned to ending inventory using (a) FIFO, (b) LiFO, (d) weighted average, and (o) specific identification, (For specific identification, units sold consist of 620 units from beginning inventory, 280 from the February 10 purchase, 100 from the March 13 purchase, 120 from the August 21 purchase, and 185 from the September 5 purchase.) Complete this question by entering your answers in the tabs below. Perpetual LIFO > Compute the cost assigned to ending inventory using weighted average. (Round your average cost per unit to 2 decimal olaces.) Compute the cost assigned to ending inventory using specific identification. (For specific identification, units sold consist of 620 units from beginning inventory, 280 ) from the February 10 purchase, 100 from the March 13 purchase, 120 from the August 21 purchase, and 185 from the September 5 purchase.) 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.)