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. Compute the cost assigned to ending inventory using FIFO. (Round your average cost per unit to 2 decimal places.) Compute the cost assigned to ending inventory using LIFO. (Round your average cost per unit to 2 decimal places.) Compute the cost assioned to endina inventorv usinn wainhtad avorano Perpetual FIFO Perpetual LIFO Weighted Average Compute the cost assigned to ending inventory using specific identification. For specific identification, units sold consist of 500 units from beginning inventory, 300 from the February 10 purchase, 200 from the March 13 purchase, 50 from the August 21 purchase, and 250 from the September 5 purchase. (Round your average cost per unit to 2 decimal places.) 4. Compute gross profit earned by the compary for each of the four costing methods. Note: Round your average cost per unit to 2 decimal places