Cost Flow Methods The following three identical units of Item PX2T are purchased during April: Item Beta Units Cost April 2 Purchase 1 $120 April 15 Purchase 1 121 April 20 Purchase 1 122 Total 3 $363 Average cost per unit $121 Assume that one unit is sold on April 27 for $174. Determine the gross profit for April and ending first-out (LIFO); and (c) weighted average cost method