ost Flow Methods The following three identical units of Item P401C are purchased during April: Item Beta Units Cost April 2 Purchase 1 $100 15 Purchase 1 120 20 Purchase 1 140 Total 3 $360 Average cost per unit $120 ($360 3 units) Assume that one unit is sold on April 27 for $300. 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) $ $ b. Last-in, first-out (LIFO) $ $ c. Weighted average cost $ $