Three identical units of merchandise were purchased during July, as follows: Date Product T Units Cost July 3 Purchase 1 $28.00 10 Purchase 1 31.00 24 Purchase 1 34.00 3 Total $93.00 Average cost per unit $31.00 Assume one unit sells on July 28 for $44.00. Determine the gross profit, cost of merchandise sold, and ending inventory on July 31 using the (6) first-In, first-out, (b) fast-in, first-out, and (c) average cost flow methods. Gross Profit Cost of Merchandise Sold Ending Inventory a) First-in, first-out b) Last-in, first-out c) Average