You have the following information for Waterway Inc. for the month ended June 30, 2022. Waterway uses a periodic inventory system. Unit Cost or Date Description Quantity Selling Price June 1 Beginning inventory 40 $51 June 4 Purchase 135 54 June 10 Sale 110 81 June 11 Sale return 15 81 June 18 Purchase 55 57 June 18 Purchase return 10 10 57 June 25 Sale 65 87 June 28 Purchase 35 54 61