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Excel is a complex program. Mastering the use of formulas and functions lets you use Excel to compute useful day-to-day information, such as calculating the true cost of credit card purchases or comparing 15-year and 30-year mortgage costs. This fun and friendly book demystifies Excel's built-in functions so you can put them to work.

You'll find step-by-step instructions on 150 of Excel's most useful functions, how they work within formulas, and how to use them to make your life easier.

• See how to use 150 of Excel's most useful functions, with real-world examples showing how each function is used within a formula
• Learn to calculate the costs of leasing versus buying a car, compute classroom grades, create an amortization table, or evaluate investment performance
• Fully updated for Excel 2010, but the principles will work with earlier versions of Excel as well
• Includes essential coverage of an additional 85 functions

In the ever-popular, non-threatening For Dummies style, Excel Formulas and Functions For Dummies, 2nd Edition makes Excel's power accessible to you.