How to get variance based on two date slicers

Hi wbhite ,

According to your description, here are my steps you can follow as a solution.

(1) This is my test data. 

Fact table:

Calendar table:

CALENDAR = CALENDAR(DATE(2023,1,1),DATE(2023,12,31))

(2) We can create a table and a measure. 

CALENDAR Table2 = VALUES('CALENDAR'[Date #1])

Material cost = 
var _a=CALCULATE(MAX('Fact Table'[total material cost]),FILTER(ALL('Fact Table'),'Fact Table'[date]=SELECTEDVALUE('CALENDAR'[Date #1])))
var _b=CALCULATE(MAX('Fact Table'[total material cost]),FILTER(ALL('Fact Table'),'Fact Table'[date]=SELECTEDVALUE('CALENDAR Table2'[Date #2])))
return _b-_a

(3) Then the result is as follows.

Best Regards,

Neeko Tang

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