Date January 1 February 10 March 13 March 15 August 21 September 5 Activities Beginning inventory Purchase Purchase Sales Purchase Purchase September 10 Sales Totals Units Acquired at Cost 700 units @ $50 per unit 300 units @ $46 per unit 100 units @ $40 per unit 110 units @ $55 per unit 570 units @ $52 per unit 1,780 units Units Sold at Retail 780 units @ $70 per unit 680 units @ $70 per unit 1,460 units