Hi Florian,
thanks again for the clarification on this.
Thing is that Average Price is a very simple calculation which, i guess, every business user is capable of defining. But there are other, more complex calculations like DSO (Days Sales Outstanding). Even though a business user may know how to calculate it, different business users may implement it differently. So it would make sense to define the calculation already in the model. This way you ensure that all users use the same calculation and it is consistent throughout the whole company as it is only defined once.
Defining the calculation on a report level may look convenient at first sight but once you have to change 100+ reports because the definition of your calculation changed you will probably think different about this.
what are your thoughts about this?
thanks,
-gerhard