Current Attempt in Progress Marin Inc. uses a periodic inventory system. Its records show the following for the month of May, in which 74 units were sold. Units Date May 1 15 Unit Cost $10 Total Cost $350 35 Explanation Inventory Purchase Purchase Total 25 11 275 24 40 12 480 100 $1,105 Calculate the weighted average unit cost. (Round answer to 3 decimal places, eg. 5.125.) Weighted average unit cost $ e Textbook and Media Calculate the ending inventory at May 31 using the FIFO, LIFO and average-cost methods. (Round answers to O decimal places, e.g. 125.) FIFO LIFO AVERAGE-COST The ending inventory at May 31 $ A eTextbook and Media