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Previous Month Value

Hello Experts!


For the simple calculation I'm trying to achieve there should not be any major issue, however, I keep trying in so many different ways suggested online and still finding no success here. Hopefully an expert here will help me get to a solution:


I simply want to make a PREVOUSMONTH operation!


On the file below there is a list of projects that achieve a % Complete every month. The extra column that I added called % Progress is the difference between the % Complete of the current month and the % Complete of the previous month. I achieve this in Excel using VLOOKUP very easily (there are over 400 projects reporting progress every month).


% Progress Table.jpg


Ultimately I want to create a matrix as per the second below


% Progress.jpg


But I am just ok if I can replicate the % Complete of the previous month on a separate column (% Complete Prev), then I would simply subtract % Complete - % Complete Prev


In Power Bi I have got as far as the measure below but receiving no values back:

% Complete Prev = CALCULATE(MAX(Sheet1[% Complete]),PREVIOUSMONTH('Sheet1'[Date]))


Any ideas will be hugely appreciated!






Super User IV
Super User IV

See if my Time Intelligence the Hard Way provides a different way of accomplishing what you are going for.


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