Cost Flow Methods The following three identical units of Item 2007 are purchased during April: Item Beta Units Cost April 2 Purchase 1 $162 April 15 Purchase 1 163 April 20 Purchase 1 164 Total 3 $489 Average cost per unit $163 (5489 + 3 units) Assume that one unit is sold on April 27 for $222. Determine the gross profit for April and ending inventory on April 30 using the () first in ratout (FFO): (b) last-in first-out (FO); and (c) weighted average cost method. Gross Profit Ending Inventory First-In, first-out (FIFO) b. Last-in, first-out (FO) c. Weighted average cost