The following are data available for Blue Grass for the month of June. 32 Sales Beginning inventory Purchases, in chronological order 2,480 units 600 units @ $8.00 1,200 units @ $8.40 800 units @ $8.80 1,000 units @ $9.00 (a.) Calculate cost of goods cold and ending inventory under the following cost flow assumptions: (1) Weighted average 2) FIFO 3.) LIFO (b.) Assume net income using the weighted average cost flow assumption was $12.800. Calculate net income under FIFO and UFO