Learn to use Excel for practical day-to-day calculations Excel is a powerful program with more than 300 built-in functions that can be used to perform an almost infinite number of calculations. This friendly book shows you how to use the 150 most valuable ones in real-world situations: to compare the cost of buying vs. leasing a car calculate classroom grades or evaluate investment performance for example. Another 85 specialized functions are also described. Detailed step-by-step instructions help you understand how functions work within formulas & how you can use them to solve everyday problems. Excel is a complex tool making it a perfect subject for the straightforward plain-English approach of this book Formulas & functions are explained in classic For Dummies fashion with examples of how to apply the 150 most commonly used functions in real-world situations Discover how to use Excel to compare the cost of 15 & 30-year mortgages decide whether to buy or lease a car calculate the actual cost of credit card purchases forecast college expenses design a database for your own use & much more Serves as an excellent resource for all versions of Excel including the latest version 2013 Excel Formulas & Functions For Dummies 3rd Edition helps you put the power of Excel to work in your daily life.