The following data are available for Sellco for the fiscal year ended on January 31, 2023: Sales Beginning inventory 840 units 280 units @ $3 Purchases, in chronological order 330 units @ $4 400 units @ $7 210 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): b. Assume that net income using the weighted-average cost flow assumption is $12,400. Calculate net income under FIFO and LIFO Complete this question by entering your answers in the tabs below. Required Required B Calculate cost of goods sold and ending inventory under the cost flow assumptions, FIFO, LIFO and Weighted average (using a periodic inventory system): Note: Round unit cost to 2 decimal places. FIFO LIFO Weighted average Cost of Goods Sold Ending Inventory