Montoure Company uses a periodic 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) LFO. (d) weighted average, and (d) specific identification. For specific identification, units sold consist of 700 units from begnning inventory. 400 from the February 10 purchase, 300 from the March 13 purchase, 150 from the August 21 purchase, and 450 frorn the September 5 purchase Note: Round your averoge cost per unit to 2 decimal places. Round your final answers to the nearest whole dollor amount. 4. Compute gross profit earned by the company for each of the four costing methods. Note: Round your overage cost per unit to 2 decimal ploces. Round your finol answers to the nearest whole dollor amount