Warnerwoods Company uses a perpetual inventory system. It entered into the following purchases and sales transactions for March. (For specific identification, the March 9 sale consisted of 80 units from beginning inventory and 340 units from the March 5 purchase; the March 29 sale consisted of 40 units from the March 18 purchase and 120 units from the March 25 purchase.)

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) LIFO,
(c) Weighted average,
(d) Specific identification. (Round all amounts to dollars and cents.)
4. Compute gross profit earned by the company for each of the four costing methods in part3.

Date Activities Units Acquired at Cost Units Sold at Retail Mar Beginning inventory100 units$50.00 per unit Mar. 5 Purchase...400 units $55.00 per unit Mar. 9 Sales Mar 18 Purchase....20 units $60.00 per unit Mar 25 Purchase....200 units @ $62.00 per unit 420 units@ $85.00 per unit 160 units $95.00 per unit 580 units Totals .. 820 units