FoCo uses the periodic method and weighted-average costing. The cost of the 2,500 units in FoCo's 20X3 ending inventory is $32,500. FoCo has the following merchandise purchases during 20X4: 1,700 units in May@$14; 3.500 units in' June@$19; and 2,300 in October $21. Calculate the cost of the 1,200 units in ending inventory. 17. a. 20,532 b. $16,632 c. $22,176 d.$25,200