m 17:08 Montoure Company uses a perpetual inventory system. It entered into the following calendar-year purchases and sales transactions Date Jan. Activities 1 Beginning inventory Feb. 10 Purchase Mar. 13 Purchase Mar. 15 Sales Aug. 21 Purchase Sept. 5 Purchase Sept. 10 Sales Totals Units Acquired at Cost 680 units @ $40 per unit 320 units @ $35 per unit 100 units @ $23 per unit 130 units @ $45 per unit 498 units @ $41 per unit 1,720 units Units Sold at Retail 720 units @ $75 per unit 620 units @ $75 per unit 1,340 units