Montoure Company uses a perpetual inventory system. It entered into the following calendar-year purchases and sales transactions Required: 1. Compute cost of goods avallable for sale and the number of units avallable for sale. 2. Compute the number of units in ending inventory. 3. Compute the cost assigned to ending inventory using (a) FIFO; (b) LIFO, (G) weighted average, and (d) specific identification, (For specific identification, units sold consist of 700 units from beginning inventory, 200 from the February 10 purchase, 100 from the March 13 purchase, 60 from the August 21 purchase, and 400 from the September 5 purchase) Compute the cost assigned to ending inventory using LIFO. Note: Round vaur avarane cost nor unit to 2 decimal nlaces. Compute the cost assigned to ending inventory using weighted average. Note: Round your averace cost per unit to 2 decimal places. Compute the cost assigned to ending inventory using specific identification. (For specific identification, units sold consist of 700 units from beginning inve from the February 10 purchase, 100 from the March 13 purchase, 60 from the August 21 purchase, and 400 from the September 5 purchase.) 4. Compute gross profit earned by the company for each of the four costing methods. Note: Round your average cost per unit to 2 decimal places