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 March 1 Activities Beginning. inventory March 5 Purchase March 9 Sales March 18. March 25. March 29 Purchase Purchase Sales Totals. Units Acquired at Cost 100 units $50 per unit 400 units @ $55 per unit 120 units @ $60 per unit 200 units @ $62 per unit 820 units Units Sold at Retail 420 units $85 per unit 160 units @ $95 per unit 580 units Required: of unite available for eale