Trifecta Company had the following calendar year inventory purchases and sales transactions: Date Activities Units Acquired at Cost Units Sold at Retail Jan. 1 Beginning inventory 1,200 units @ $ 90/unit Feb. 10 Purchase 700 units @ $ 84/unit Mar. 13 Purchase 400 units @ $ 58/unit Mar. 15 Sales Aug. 21 Purchase 300 units @ $80/unit Sept. 5 Purchase 1,090 units @ $ 92/unit Sept. 10 Sales 1,230 units @ $130/unit 1,015 units @ $130/unit Totals 3,690 units 2,245 units If Trifecta Company uses the FIFO periodic inventory cost flow assumption, the gross margin for the period is closest to: $106,150 $105 40 $186,810 $291,850 $185,700