Required information [The following information applies to the questions displayed below. The following information pertains to Mason Company for 2018: Beginning inventory Units purchased 150 units 410 units @ @ $70 $73 Ending inventory consisted of 100 units. Mason sold 460 units at $146 each. All purchases and sales were made with cash. Operating expenses amounted to $2700 Required a. Compute the gross margin for Mason Company using the following cost flow assumptions: (1) FIFO, (2) LIFO, and (3) weighted average. (Round "Cost per unit" to 2 decimal places and final answers to nearest whole dollar amount.) FIFO LEO LIFO Weighted Gross margin