Through the years there have been many different financial ratios that have been developed. Your banker has some that he or she watches when making a decision to loan your company money or call in a loan that was made to your company. I have developed 10 ratios that I use to determine the health of a contracting company on an on-going basis. These 10 are not what your banker looks at (at least some of them). However, these are 10 operational ratios which will help you run your company on a day-to-day basis. They will help you in identifying the warning signs that allow you to take care of the minor issues before they become minor crises.
These ratios and guidelines have been developed for the contracting industry. I have no clue as to whether they hold true in other industries since I don't work with companies other than contracting companies.