Perform calculations on Aggregation
1) It will be very useful to have Calculation Ability on Aggregations. For example, dividing two summations to get an average. Or subtracting then dividing ... etc.
2) It will be very useful to have a library-level Report Page that contains the selected aggregations as well as any calculations chosen/designed in the aggregation part of the library.
To be clear, I am voting for part one 1). Not half a vote for 1), half a vote for 2). With my luck we will get 2) and not 1).