The following data are available for Sellco for the fiscal year ended on January 31, 2023: Sales 1,600 units Beginning inventory 500 units @ $4 Purchases, in chronological order 600 units @ $5 Purchases, in chronological order 800 units @ $6 Purchases, in chronological order 500 units @ $8 Required: Calculate cost of goods sold and ending inventory under the cost flow assumptions, FIFO, LIFO and weighted average (using a periodic inventory system): Assume that net income using the weighted-average cost flow assumption is $80,000. Calculate net income under FIFO and LIFO