Consider the following perpetual inventory system using the first-in first-out method of costing. It recorded the following purchase and sales transactions for March 2017: Using the chart below compute the dollar value of: a) Ending Inventory b) Cost of Goods Sold c) Gross Margin Remember: You cannot sell goods that are not in your inventory. The following Cost of Goods Worksheet (dollar value) is provided: Sales_____ Beginning Inventory_____ Purchases_____ Goods Available for Sale______ Ending Inventory_____ Cost of Goods Sold_____ Gross Margin______