Count duplicates in rolling quarter from date slicer

[Anonymous]

UPDATED

I think I need sommething like count duplicates value by trade
Within 3 month period (from start date month and including 2 months back to get a 3 month rolling period)

And then to make it more difficult when someone selects a month here:

I would like it to filter the table above to show the 3 month period (current month and prev 2 months)

[Whitewater100 · Accepted solution]

Hi pbiuser001:

Please see attached file for solution. I hope this helps! 
*I included A as a duplicate, following the logic in your image above.
https://drive.google.com/file/d/1XSa8uyOsQ5G1yFbiliJufm3tvZfjLyW2/view?usp=sharinghttps://drive.google.com/file/d/1XSa8uyOsQ5G1yFbiliJufm3tvZfjLyW2/view?usp=sharing 

[tamerj1]

Hi @Anonymous 
Would you please paste a screenshot of the visual?

[Anonymous]

Hi @tamerj1  I think I can provide something that will help without sharing too much private data.

I think I need sommething like count duplicates value by trade
Within 3 month period (from start date month and including 2 months back to get a 3 month rolling period)

And then to make it more difficult when someone selects a month here:

I would like it to filter the table above to show the 3 month period (current month and prev 2 months)