The following data are available for Sellco for the fiscal year ended on January 31, 2020: Sales 780 units Beginning inventory 270 units $4 Purchases, in chronological order 310 units $4 410 units @ $7 220 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.) FIFO LIFO Weighted average Cost of Goods Sold Ending Inventory b. Assume that net income using the weighted-average cost flow assumption is $12,600. Calculate net income under FIFO and LIFO. (Round unit cost to 2 decimal places.) FIFO LIFO Net Income