This article describes how to go from a standard table with a NET at the bottom...
...to a table where the NET has been moved to the top:
1. Select your table.
2. In the toolbar go to Automate > Browse Online Library > Sort/Reorder Rows or Columns > Move NET Row to the Top.
3. Press OK.
Note, if you have a crosstab and select Swap Rows and Columns on your table, the rule will apply to what was previously the column NET instead.