You are provided with the following information for Waterway Inc. for the month ended June 30, 2020. Waterway uses the periodic method for inventory. Unit Cost or Date Description Quantity Selling Price June 1 Beginning inventory 42 $38 June Purchase 139 41 June 10 Sale 105 72 June 11 Sale return 17 72 June 18 Purchase 54 44 June 18 Purchase return 10 44 June 25 Sale 67 77 June 28 Purchase 32 47 4 (21) Calculate cost per unit (Round answer to 2 decimal places, eg. 5.25.) Weighted average cost per unit $