HP Intelligent Management Center Standard Software Platform - Manual (Page 251)

11. Click OK to return to the Insert Summary dialog box.
12. Select the group you just created from the Summary location list and
then click OK.
Your data will be sorted by date and grouped in one week intervals.
Percentages
Calculating a percentage
You can calculate the percentage of one group within a broader grouping.
For example, you can show the percentage of sales in each city based on
the total sales for each country. Or, you can see what percentage of the
grand total of sales each country contributes.
To calculate a percentage
1. On the Insert menu, click Summary.
Crystal Reports 2008 SP3 User's Guide 251
10 Sorting, Grouping, and Totaling
Percentages