2. Calculate the cost of goods sold and the ending inventory using FTrO and weighted average, assuming Xpert uses a perpetual inventory system. Rocind the weighted average cost per unit to two decimal places. b. What woald be the ending inventory and cost of goods sold if Xpert used FIFO and weighted average in a periotic inventopy system? Round the weighted average cont per unit to her decimal places: Record trunsoctions in perpetual and periodic inwenfory systems