fifo, lifo, weighted average, specific identification for a company uses a perpetual inventory system. It enter into the follwowing purchaes and sale transactions for march. March 1 beginning inventory130 units @ $51.60/unit March 5 Purchase 240units @$56.60/unit Mar 9 Sales 290units@ $86.60/unit March 18 Purchase 100 units@61.60/unit March 25 Purchase 180 units@$63.60 March 29 sales 160 units $96.60/unit

Compute gross profit earned by the company for each of the four costing methods. For specific identification, the March 9 sale consisted of 80 units from beginning inventory and 210 units from the March 5 purchase; the March 29 sale consisted of 60 units from the March 18 purchase and 100 units from the March 25 purchase. (Round average cost per unit to 2 decimal places.)