Warnerwoods Company uses a periodic inventory system. It entered into the following purchases and sales transactions for March. Date Activities Units Acquired at Cost Units Sold at Retail March 1 Beginning inventory 200 units @ $90 per unit March 5 Purchase 500 units @ $95 per unit March 9 Sales 520 units @ $125 per unit March 18 Purchase 320 units @ $100 per unit March 25 Purchase 400 units @ $102 per unit March 29 Sales 360 units @ $135 per unit Totals 1,420 units 880 units