Make Excel do the math & make sense of your data Use the Insert Function dialog box array formulas & functions & more Excel 2007 has more than 500 built-in functions. This book looks at the top 150 so you can find out which ones will make your life easier. Want to compare a 15-year mortgage to a 30-year mortgage? Forecast expenses for your college freshman? See how your online business is doing? Heres the fun & easy way! Discover how to Create worksheets to track costs & revenue Tell the difference among average median & mode Work with statistical functions Develop forecasts & track trends Manipulate strings & work with database functions