please help

Required information [The following information applies to the questions displayed below.] The following Information pertains to Mason Company for Year 2 : Ending inventory consisted of 30 units. Mason sold 370 units at $90 each. All purchases and sales were made with cash. Operating expenses amounted to $4,100. Pequired . Compute the gross margin for Mason Company using the following cost flow assumptions: (1) FIFO, (2) LIFO, and (3) weighted verage. Yeter Round cost per unit to 3 decimal places and final answers to the nearest whole dollar amount