Periodic System-Calculating Ending Inventory and Cost of Sales using FIFO The following information is available for Water Inc. The company maintains a periodic inventory system. A physical count shows 200 units in stock on January 31 . What is (a) ending inventory on January 31 , and (b) cost of goods sold for January, using the FIFO inventory method? - Note: Round your final answers below to the nearest whole dollar. - Note: Use your rounded ending inventory answer to compute part b. cost of goods sold