Cost Flow Methods The following three identical units of Item PX2T are purchased during Apeilt ($261+3units) Assume that one unit is sold on Agril 27 for 5118 . Determine the gross proft for Aptil and ending inventory on April 30 using the (a) first-in, first-out (FIFO): (b) last-ini first-out (LIFO); and (c) weighted average cost method