The following data are available for Sellco for the fiscal year ended on January 31, 2020- Sales Beginning inventory Purchases, in chronological order 820 units 290 units 310 units @ $ 410 units @ $ 6 200 units @ $ 20 au Required: a. Calculate cost of goods sold and ending inventory under the cost flow assumptions, FIFO, LIFO and Weighted average (using a periodic inventory system): (Round unit cost to 2 decimal places.) Cost of Goods Sold Ending Inventory FIFO LIFO Weighted average b. Assume that net income using the weighted average cost flow assumption is $12,400. Calculate net income under FIFO and LIFO. (Round unit cost to 2 decimal places.) Net Income FIFO LIFO