Warnerwoods Company uses a perpetual inventory system. It entered into the following purchases and sales transactions for March. Date March 1 Activities Beginning inventory Units Acquired at Cost Units Sold at Retail 100 units March 5 Purchase 400 units March 9 Sales March 18 March 25 March 29 Purchase Purchase Sales Totals 120 units 200 units @ $50 per unit @ $55 per unit @$60 per unit @$62 per unit 420 units @ $85 per unit 820 units 160 units @ $95 per unit 580 units 3. Compute the cost assigned to ending inventory using (a) FIFO, (b) LIFO, (c) weighted average, and (d) specific identification. 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.