If you can please explain the steps you used to fill in chart as well thank you :)

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. Units Sold at Retail Units Acquired at Cost 240 units @ $53.80 per unit 295 units @ $58.80 per unit Date Activities Mar. 1 Beginning inventory Mar. 5 Purchase Mar. 9 Sales Mar. 18 Purchase Mar. 25 Purchase Mar. 29 Sales 400 units @ $88.80 per unit 155 units @ $63.80 per unit 290 units @ $65.80 per unit 270 units @ $98.80 per unit 670 units Totals 980 units 4. Compute gross profit earned by the company for each of the four costing methods. For specific identification, the March 9 sale consisted of 135 units from beginning inventory and 265 units from the March 5 purchase; the March 29 sale consisted of 115 units from the March 18 purchase and 155 units from the March 25 purchase. (Round weighted average cost per unit to two decimals and final answers to nearest whole dollar.) Gross Margin FIFO LIFO Avg. Cost Spec. ID Sales Less: Cost of goods sold Gross profit