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Anonymous
Not applicable

Inverse Running Total

I am attempting to calculate an inverse running total on values. So I would in essence start with a value, 100, and in an indexed format reduce that value based on the next indexed field. 

 

Example: 

 

IndexValueRunning Difference
1100100
21090
34050
44010
520-10
1 ACCEPTED SOLUTION
CNENFRNL
Community Champion
Community Champion

Running Diff = 
MINX( FILTER( INFO, INFO[Index] = 1 ), INFO[Value] )
    - SUMX(
        FILTER( INFO, 1 < INFO[Index] && INFO[Index] <= EARLIER( INFO[Index] ) ),
        INFO[Value]
    )

Screenshot 2021-07-17 054854.png


Thanks to the great efforts by MS engineers to simplify syntax of DAX! Most beginners are SUCCESSFULLY MISLED to think that they could easily master DAX; but it turns out that the intricacy of the most frequently used RANKX() is still way beyond their comprehension!

DAX is simple, but NOT EASY!

View solution in original post

2 REPLIES 2
CNENFRNL
Community Champion
Community Champion

Running Diff = 
MINX( FILTER( INFO, INFO[Index] = 1 ), INFO[Value] )
    - SUMX(
        FILTER( INFO, 1 < INFO[Index] && INFO[Index] <= EARLIER( INFO[Index] ) ),
        INFO[Value]
    )

Screenshot 2021-07-17 054854.png


Thanks to the great efforts by MS engineers to simplify syntax of DAX! Most beginners are SUCCESSFULLY MISLED to think that they could easily master DAX; but it turns out that the intricacy of the most frequently used RANKX() is still way beyond their comprehension!

DAX is simple, but NOT EASY!

Anonymous
Not applicable

This solved my needs, thank you very much!

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