Current Attempt in Progress Carla Vista Co. uses a perpetual inventory system reports the following for the month of June. Date Explanation Units Unit Cost Total Cost June 1 Inventory 140 $6 $840 12 Purchases 360 7 2,520 23 Purchases 260 8 2,080 30 Inventory 285 (a) Calculate the average cost per unit, using a perpetual inventory system. Assume a sale of 420 units occurred on June 15 for a selling price of $9 and a sale of 55 units on June 27 for $10. (Round intermediate calculations to O decimal places, eg. 5.250 and final answer to 3 decimal places, eg. 5.125) June 1 June 12 $ June 15 $ June 23 $ June 27 $