Industry Averages and Financial Ratios

Company selected is microsoft. I only need the following part using the data on yahoo finance for last 2 years – Balance sheet and income statement for Microsoft:

Efficiency Ratios

• Collection Period Ratio 
  
• Sales to Inventory Ratio 
  
• Assets to Sales Ratio 
  

http://finance.yahoo.com/q/is?s=MSFT+Income+Statement&annual

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