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Measure from PBI dataset blank under "Aggregate"
Hello everyone.
I am very new to the Report Building tool, but I cannot find a solution to this very simple scenario (or maybe I am not understanding the other entries in the forum).
I want to replicate this simple matrix:
Where, as can be seen, the third column is the result of the second divided by the first.
In Report Builder, I get something like this when I build the query:
Great! The numbers are the same. Good. Now let's add it to a matrix:
Note that I select "Aggregate" because I don't want the averages to be summed. This I learnt from Paginated Reports in a day tutorials, it can be seen in https://www.youtube.com/watch?v=JhEa_TugXeE&list=PL1N57mwBHtN1icIhpjQOaRL8r9G-wytpT&index=15&ab_chan... at 16:08.
After finishing the matrix, I get an empty result:
For some reason I cannot undestand, if I enter the query editor and leave it, the query seems to update itself (why does this happen??) and now I get the following:
Again, I am completely new to the topic, and I'm sure I must be missing something very basic. Could someone please point me in the right direction?
Thank you in advance for your time,
Alberto.

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