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Cost Flow Methods The following three identical units of Item K113 are purchased during April: Item Beta Units Cost April 2 Purchase 1 $302 April 15 Purchase 1 305 April 20 Purchase 1 308 Total 3 $915 Average cost per unit $305 ($915 3 units) Assume that one unit is sold on April 27 for $442. Determine the gross profit for April and ending inventory on April 30 using the (a) first-in, first-out (FIFO); (b) last-in, first-out (LIFO); and (c) weighted average cost method. Gross Profit Ending Inventory a. First-in, first-out (FIFO) $fill in the blank 1 $fill in the blank 2 b. Last-in, first-out (LIFO) $fill in the blank 3 $fill in the blank 4 c. Weighted average cost