By Bill Jelen
Bill Jelen is the author of 24 books on Microsoft Office Excel. He is a regular guest on TechTV with Leo Laporte and the host of MrExcel.com, which includes more than 300,000 questions and answers about Excel.
In Excel 2007, the Goal Seek command is great for solving certain equations backward. For example, if you know that you want to obtain a 48-month loan for a car at 5% interest, you can use Goal Seek to figure out what loan amount would result in a $490 monthly payment.

This article is an excerpt from Learn Excel 97-2007 from MrExcel by Bill Jelen.
Buy the print edition or download a free e-book edition from MrExcel.com.
Other articles by this author
Excel 2007
Excel 2003