How to Add Sub-totals in a Table Break
In Table type Report Data Views, where a grouping is defined, you can add break rows in tables when the value of a given column changes.
In the Break rows, you can display computation results performed on each column including numerical values.
To add sub-totals in a table:
1. Access the Report Table View properties: Table.
2. Click Add subtotals to add a break.
The break is created.
3. Select the break row, and define its characteristics:
(optional) in Title field, enter the title to be displayed in the break.
in Total by, select the grouping column.
in Operation Title, select the subtitle display (values are: Automatic/Given/No subtitle).
in Break Type, select the break types you want to add (sub-total only or sub-total and grand-total).
The break row is defined with a title.
4. Roll the mouse over the break and click Add computation:
in the Column Concerned field, select the column concerned by the computation
In the Function field, select the computation to be applied to the column.
For example, you can group the table rows according to Vendor. You can add a break row after each group (Vendor), and for each vendor, you can display the number of Technologies and the sum of costs.
 
You get the following report: