The following data are avallable for Sellco for the fiscal year ended on January 31,2020 : Required: o. 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 ploces.) b. Assume that net income using the weighted-average cost flow assumption is $80.000. Calculate net income under FIFO and LIFO. (Round unit cost to 2 decimal places.)