Ivanhoe Company had a beginning inventory balance on July 1 of 350 units at a cost of $3.10 each. During the month, the following inventory transactions took place: Purchases Sales Cost per Price per Date Units unit Date Units unit July 10 1,370 $3.30 July 2 300 $6.10 13 700 3.70 11 1,050 6.10. 27 570 3.90 28 370 6.60