The following three identical units of Item LO3V are purchased during April: April 2 April 15 April 20 Total Average cost per unit Item Beta Units Cost Purchase 1 $226 Purchase 1 228 Purchase 1 230 3 $684 $228 ($684 + 3 units) Assume that one unit is sold on April 27 for $331. 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. a. First-in, first-out (FIFO) b. Last-in, first-out (LIFO) c. Weighted average cost Gross Profit Ending Inventory