Writing com has a beginning inventory of 16 sets of pens at a cost of 2 12 each During the year Writing com purchased 8 sets at 2 15 9 sets at 2 25 14 sets at 3 05 and 13 sets at 3 20 By the end of the year 29 sets were sold a Calculate the number of pen sets in stock Ending inventory b Calculate the cost of ending inventory under LIFO FIFO and weighted average methods Note Round your intermediate calculation and final answers to the nearest cent LIFO FIFO Weighted average