Ayayai Corp, uses a periodic inventory system. Its records show the following for the month of May, in which 69 units were sold. Units Date May 1 15 Explanation Inventory Purchase Purchase Total 32 25 Unit Cost $8 9 10 Total Cost $256 225 430 24 43 100 $911 Calculate the weighted average unit cost. (Round answer to 3 decimal places, eg. 5.125) Weighted average unit cost $ Calculate the ending inventory at May 31 using the FIFO, LIFO and average cost methods. (Round answers to decimal places, e.g. 125) FIFO LIFO AVERAGE-COST The ending inventory at May 31 $ $