Exercise 6-14 (Part Level Submission) Martinez Corp. reports the following for the month of June. Date Explanation Units Unit Cost Total Cost June 1 Inventory 122 $5 $610 12 Purchases 389 6 2,334 23 Purchases 188 7 1,316 30 Inventory 216 A sale of 434 units occurred on June 15 for a selling price of $9 and a sale of 49 units on June 27 for $10. (a) Calculate the average cost per unit, using a perpetual inventory system. (Round answers to 3 decimal places, e.g. 5.125) June 1 s June 12 s June 15 June 23 une 27