The following data are available for Sellco for the fiscal year ended on January 31, 2017: Sales Beginning inventory Purchases, in chronological order 790 units 250 units 300 units 440 units 220 units @ S3 @$4 @ $7 @ S7 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 $ 3,490 s 2,940 LIFO 's 4,620 Weighted average b. Assume that net income using the weighted average cost flow assumption is $13,400. Calculate net income under FIFO and LIFO. (Round unit cost to 2 decimal places.) Net Income FIFO LIFO