Crane Inc. uses a periodic inventory system. Its records show the following for the month of May, in which 78 units were sold. Date Explanation Units Unit Cost Total Cost May 1 Inventory 33 $8 $264 15 Purchase 27 27 9 243 24 24 Purchase 40 10 10 Total 100 400 $907 x Your answer is incorrect. Calculate the weighted-average unit cost. (Round answer to 3 decimal places, e.g. 5.125.) Weighted-average unit cost $ 41.227