The following three identical units of Item P401C are purchased during April: Date Item Beta Units Cost Apr. 2 Purchase 1 $251 Apr. 15 Purchase 1 253 Apr. 20 Purchase 1 255 Total 3 $759 Average cost per unit ($759 3 units) $253 Assume that one unit is sold on April 27 for $362. 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