You have the following information for Waterway Industries for the month ended October 31, 2017. Waterway Industries uses a periodic method for inventory. Date Description Units Unit Cost or Selling Price Oct. 1 Beginning inventory 54 $23 Oct. 9 Purchase 132 25 Oct. 11 Sale 108 34 Oct. 17 Purchase 103 26 Oct. 22 Sale 55 39 Oct. 25 Purchase 65 28 Oct. 29 Sale 121 39 Calculate the weighted-average cost. (Round answer to 3 decimal places, e.g. 5.125.) Weighted average cost per unit $ Calculate ending inventory, cost of goods sold, gross profit under each of the following methods. (1) LIFO. (2) FIFO. (3) Average-cost. (Round answers to 0 decimal place, e.g. 125.) LIFO FIFO AVERAGE-COST The ending inventory $ 1642 $ 1950 $ 1788 The cost of goods sold $ 7398 $ 7090 7252 Gross profit $ $ 3138 $ 3446 $ 3284 Calculate gross profit rate under each of the following methods. (1) LIFO. (2) FIFO. (3) Average-cost. (Round answers to 1 decimal place, e.g. 51.2%) LIFO FIFO AVERAGE-COST Gross profit rate % % %