Required information Exercise 5-19 Effect of inventory cost flow (FIFO, LIFO, and weighted average) on gross margin LO 5-6 The following information applies to the questions displayed below. The following information pertains to Mason Company for 2018: Beginning inventory Units purchased 150 units70 410 units $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. Exercise 5-19 Part c c. Determine the cash flow from operating activities, using each of the three cost flow assumptions listed in Requirement a Ignore the effect of income taxes. (Amounts to be deducted should be indicated with a minus sign.)