In my data, 2018 includes items A,B,C only (eg values 10, 20, 30)
2017 contains data for item A, B, C, D (eg values 15,25,35,45)
In my Matrix report in PowerBI, I am showing 3 columns:-
Item, 2018Values, 2017Values
2017Values is a DAX measure created using SAMEPeriodLastYear.
Then I have a...