Akira Company had the following transactions for the month. Number Total of Units Cost Beginning inventory 150 $1,500 Purchased Mar. 31 190 2,280 Purchased Oct. 15 160 2,400 Total goods available for sale 500 6,180 Ending inventory 60 ? Calculate the gross margin for the period for each of the following cost allocation methods, using periodic inventory updating. Assume that all units were sold for $30 each. Round your intermediate calculations to 2 decimal places and final answers to the nearest dollar amount. Gross Margin A. First-in, First-out (FIFO) B. Last-in, First-out (LIFO) C. Weighted Average (AVG)