Required information [The following information applies to the questions displayed below) Warnerwoods Company uses a perpetual inventory system. It entered into the following purchases and sales transactions for March Date Activities Units Aequired at Cost Units sold at setan March 1 Deginning inventory 100 units $50 per unit March 5 Purchase 400 units # $55 per unit March Sales 420 units $85 per unit March 18 Purchase 120 unita $60 per unit March 25 Purchase 200 units 562 per unit March 29 Sales 160 unito $95 per unit Totalo 320 units 580 units 4. Compute gross profit earned by the company for each of the four costing methods. For specific identification units sold include 80 units from beginning inventory. 340 units from the March 5 purchase, 40 units from the March 18 purchase, and 120 units from the March 25 purchase. (Round weighted average cost per unit to 2 decimal places.) FIFO UFO Weighted Averet Specific ID Gross Margin Sales Loss Cost of goods sold Gross profit