Click the link below to view Microsoft Corporation’s (MSFT) 2011 Annual Balance Sheet:

http://finance.yahoo.com/q/bs?s=msft+Balance+Sheet&annual

Choose and compute 5 of the following from the Microsoft (2011) balance sheet. Explain how they are useful tools in assessing firm performance and then give your own assessment of Microsoft’s performance for the year 2011. 
Debt-equity ratio, enterprise value, earnings per share, operating margin, net profit margin, accounts receivable days, accounts payable days, inventory days interest coverage ratio, return on equity, return on assets, price-earnings ratio, market-to-book ratio.