The following data are available for Sellco for the fiscal year ended on January 31, 2020: Sales Beginning inventory Purchases, in chronological order 830 units 250 units @ $3 350 units @ $ 4 400 units @ $ 6 200 units @ $ 7 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 $ 5,580 $ 370 FIFO LIFO Weighted average b. Assume that net income using the weighted average cost flow assumption is $12,200. Calculate net income under FIFO and LIFO. (Round unit cost to 2 decimal places.) Net Income FIFO LIFO