Please answer with at least 125 words. Thank you

The book covers 21 different financial ratios. There are many, many more that are not covered. How would a user know if a particular ratio demonstrates that a company is doing well or doing poorly? As an example to help explain what I am asking, a company has a current ratio calculated at 2.67. That just looks like another number. How does a user of financial statements know if that is a good number or a bad number? I can tell you that it may be good for one company and less good for another. How would I know if the financial statements being analyzed are in good shape or not