We are using a SASS SSAS driven pilot table where we would like to add a calculated measure using the sum of a column.
We don't know in advance which filters the users will be using, the measure is valid for any of them, so we just tried adding a calc measure on the excel file such as
[Measures].[Sales]/sum(axis(1),[Measures].[Sales])
But it doesn't seem to work. So just to test we started with a plain
sum(axis(1),[Measures].[Sales])
which gives some astonishing result. We cannot figure out what the result is adding up! Applying some filters and a detailed row, we get exactly twice the expected value (!!??). Applying exactly the same filters and filtering also the rows, we get a value that we are not able to guess where it comes from.
Any idea about what MDX should we use?
Edited to clarify: We want to add the calculated measure on an Excel pivot table, not on the SSAS olap cube definition.