You have the following information for Concord Inc. for the month ended June 30, 2022. Concord uses a periodic inventory system. Unit Cost or Date Description Quantity Selling Price June 1 Beginning inventory 40 $45 June 4 Purchase 135 48 June 10 Sale 110 15 75 June 11 Sale return 15 75 June 18 Purchase 55 51 June 18 Purchase return 10 51 June 25 Sale 65 81 June 28 Purchase 55 35 55 55 Calculate cost per unit. (Round answer to 2 decimal places, e.g. 5.25.) Weighted-average cost per unit $