You are provided with the following information for Waterway Inc. for the month ended June 30, 2020. Waterway uses the periodic method for inventory Date June 1 June 4 June 10 June 11 June 18 June 18 June 25 June 28 Description Beginning inventory Purchase Sale Sale return Purchase Purchase return Sale Purchase Quantity 42 139 105 17 54 10 67 32 Unit Cost or Selling Price $38 41 72 72 44 44 77 47 (21) Your answer is correct. Calculate cost per unit (Round answer to 2 decimal places, eg. 5.25.) Weighted average cost per unit $ 4177 Calculate ending inventory.cost of goods sold, gross proft under each of the following methods. (1) LIFO. (2) FIFO. (3) Average- cost. (Round average-cost method answers to 2 decimal places, eg. 1,250.25 and other answers to decimal places, eg. 1,250.) LIFO FIFO AVERAGE-COST The ending inventory S The cost of goods sold Gross profit $ $ $ $ $ $ $ $