Three identical units of merchandise were purchased during ly as follows: Date Product Units Cost July 3 Purchase 1 $29 10 Purchase 1 32 24 Purchase 1 35 Total 3 $96 Average cost per unit $32 Asume one unit on July 28 for $46. Determine the gross profit cost of goods sold, and ending inventory on My 3 using a first-in, first-out. (b) lastin, rst out, and (c) average cost flow methods Gross Profit Cost of Goods Sold Ending Inventory a First-in, first out b. Latin, first-out Average All work saved