Crystal Reports for Rational Application Developer Designer Guide

When you are setting up a custom format for a number field object, use this list to set the Decimals property for that object. This option allows you to specify the number of decimal places you want to print. You can specify from 0 to 10 decimal places. When you choose the number of decimal places you want, the program changes the sample number at the bottom of the dialog box to show you the results of your selection.