I need to write a paper addressing this question: Compare and contrast financial and managerial accounting.

Hi I'm asking for help in my accounting class. I need to write a paper addressing this question:

Compare and contrast financial and managerial accounting. Provide one specific, real-life example of how either financial accounting helps external stakeholders make informed decisions or how managerial accounting helps managers to improve operational and financial performance.  

I need help making a long enough paper for the topic. I need to be able to get enough information to write 3-5 pages and I would like the resources you are using so I can add my own thoughts.