Calculate ending inventory at October 31 and cost of goods sold for the month assuming that DL used (1) FIFO and (2) average cost. (Round average cost per unit to 2 decimal places, e.8. 50.25 and all other answers to the nearest whole dollar, e.g. 5,275. Calculate gross profit using (1) FIFO and (2) weighted average. (Round the weighted average cost per unit and final answers to 2 decimal places, e.8. 5.275 .75 .)