The following data are available for Sellco for the fiscal year ended on January 31, 2020 Sales Beginning inventory Purchases, in chronological order $3 780 units 240 units 350 units 400 units 240 units $5 56 $ 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 FIFO LIFO Weighted average b. Assume that net income using the weighted average cost flow assumption is $12,900. Calculate net income under FIFO and LIFO. (Round unit cost to 2 decimal places.) Net Income FIFO LIFO