Shamrock, Inc. uses a periodic inventory system. Its records show the following for the month of May, in which 74 units were sold. Date Explanation Units Unit Cost May 1 Inventory $9 15 Purchase 10 24 Purchase 11 Total (a) 33 27 40 100 Your answer is correct. (b) Calculate the weighted-average unit cost. (Round answer to 3 decimal places, e.g. 5.125.) Weighted-average unit cost $ eTextbook and Media Solution Using multiple attempts has impacted your score. 10% score reduction after attempt 1 Total Cost $297 270 440 $1,007 The ending inventory at May 31 S Calculate the ending inventory at May 31 using the FIFO, LIFO and average-cost methods. (Round answers to 0 decimal places, eg. 125.) 10.07 FIFO S LIFO Attempts: 2 of 3 used S AVERAGE-COST