To help with what we are doing here and also you'll need I want EACH OF YOU:

to take from the book the ratio formulas and set up in excel so that you can use them....they are all listed in your chapter, the formulas

So all you need to do is set up in excel so that as you are given/see this data you can then plug into your excel sheet and be able to generate answers.

Also though as you do this keep in mind the common size statements and also discuss how ratios can provide the same ability to compare two vastly different companies, i.e. Apple and Jewel Foods with the same traits as with common size income statements.