Bramble Corp. began operations on July 1. It uses a perpetual inventory system. During July, the company had the following purchases and sales. Purchases Date Units Unit Cost Sales Units July 1 10 $66 July 6 July 11 6. $70 July 14 July 21 8. $74 July 27 7 (a1) - Your answer is partially correct. Calculate average cost for each unit. (For calculation and answers purpose round unit costs to 2 decimal places, e.g- 15.25.) July 1 July 6 July 11 %24 52 July 14 77 July 21 July 27