The following data are available for Sellco for the fiscal year ended on January 31, 2017: Sales Beginning inventory Purchases, in chronological order 810 units 270 units @$3 310 units @$5 440 units@$7 230 units @$8 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 $13,500. Calculate net income under FIFO and LIFO. (Round unit cost to 2 decimal places.) Net Income FIFO LIFO