Formulas are powerful tools for performing calculations and analyzing data in Excel. In this beginner’s guide, you’ll learn how to use formulas and explore some popular built-in functions.

In Excel spreadsheets, complex formulas are difficult to enter without making mistakes. Microsoft Excel’s LAMBDA() function can make such errors easier to find.

A: Use Excel 2013’s new Ceiling.Math function to round your costs up to the nearest dollar amount evenly divisible by nine, and then add 99 cents, as suggested in the screen image below.