I have to show some extra data to users. Column-sums, column-statistics (different values per column) and column-rests (the sum of all values for the columns, which are on pages not shown).
These have to be calculated explicitly, so the user has to activate them. Also, the tables use paging.
This is like it's made right now, but I think it's far from optimal.
What are better ways to show this sort of additional information to the user?