Assume that Q-Mart uses a periodic FIFO inventory system. During the year, it sold 14 units. Calculate the dollar value of its cost of goods sold for the period. Date Activity Jan. 1 Beginning Inventory 10 @ $12 Jan. 5 Purchase 10 @ $15 Jan. 30 Purchase 10 @ $18 Feb. 8 Sale 14 units Multiple choice question. $150 $180 $210 $240