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shibabrata27's avatar
shibabrata27
Frequent Visitor
7 years ago
Solved

Calculate the difference between two columns in matrix

Hi, I have below below data in Matrix View
              Day0   Day1   Day2   Day3
Amount 200     230      195      220

I want one more row in matrix view as

% Diff from prev value, final output I want like

             Day0     Day1     Day2     Day3
Amount 200       230       195       220
% Diff                15.0%    -15.2%   12.8%

Can anyone suggest how easily I can achieve this.

In other Visualization tool it was someting like get previous value and do a % calculation. In Power BI , I am not able to proceed.

NOTE: Below view I want in Matrix Visualization in Power BI

Thanks in Advance !

Need Help
  • Stachu's avatar
    Stachu
    7 years ago

    Day has to be numeric for this
    as you want to have Measures in rows you actually will need a new table for that, you can  create one in DAX

    RowLabels = UNION(ROW("Column","Amount"),ROW("Column","Difference"))

    then this measure will work

    Measure = 
VAR __Amount = SUM('Table'[Amount])
VAR __DayIndex = MAX('Table'[Day])
VAR __CurrentDay = CALCULATE(SUM('Table'[Amount]),'Table'[Day]=__DayIndex)
VAR __PreviousDay = CALCULATE(SUM('Table'[Amount]),'Table'[Day]=__DayIndex-1)
VAR __Difference = DIVIDE(__CurrentDay-__PreviousDay,__PreviousDay)
VAR __RowLabel = SELECTEDVALUE(RowLabels[Column])
RETURN
SWITCH(__RowLabel,
"Amount", __Amount,
"Difference", __Difference,
BLANK()
)
  • shibabrata27's avatar
    shibabrata27
    7 years ago

    Here DayIndex-1 is throwing error , I think for the very first index its giving -ve index which is not there.

    VAR __PreviousDay = CALCULATE(SUM('Table'[Amount]),'Table'[Day]=__DayIndex-1)

    Kindly share how to handle that because PreviousDay value for first index i want as blank and same for difference column as well. For fisrt Day difference should come as blank

  • Anonymous's avatar
    Anonymous
    7 years ago

    Hi,

     

    Below is the solution screenshot for your requirement.


     

     

     

     

     

     

     

     

    Click Here to download the sample application.

    Hope it help you.

     

    Regards,

    Pavan Vanguri.

     

6 Replies

  • Stachu's avatar
    Stachu
    Icon for Community Champion rankCommunity Champion
    7 years ago

    can you share the layout of underlying data table?

    • shibabrata27's avatar
      shibabrata27
      Frequent Visitor
      7 years ago

      Hi I have data format something like this.

      User     Day    Amount

      U1        Day0    1000

      U2       Day2      3000

      U2        Day1     234

      U3        Day0     345

       

      • Stachu's avatar
        Stachu
        Icon for Community Champion rankCommunity Champion
        7 years ago

        Day has to be numeric for this
        as you want to have Measures in rows you actually will need a new table for that, you can  create one in DAX

        RowLabels = UNION(ROW("Column","Amount"),ROW("Column","Difference"))

        then this measure will work

        Measure = 
VAR __Amount = SUM('Table'[Amount])
VAR __DayIndex = MAX('Table'[Day])
VAR __CurrentDay = CALCULATE(SUM('Table'[Amount]),'Table'[Day]=__DayIndex)
VAR __PreviousDay = CALCULATE(SUM('Table'[Amount]),'Table'[Day]=__DayIndex-1)
VAR __Difference = DIVIDE(__CurrentDay-__PreviousDay,__PreviousDay)
VAR __RowLabel = SELECTEDVALUE(RowLabels[Column])
RETURN
SWITCH(__RowLabel,
"Amount", __Amount,
"Difference", __Difference,
BLANK()
)
  • Anonymous's avatar
    Anonymous
    Not applicable
    7 years ago

    Hi,

     

    Below is the solution screenshot for your requirement.


     

     

     

     

     

     

     

     

    Click Here to download the sample application.

    Hope it help you.

     

    Regards,

    Pavan Vanguri.

     

    • shibabrata27's avatar
      shibabrata27
      Frequent Visitor
      7 years ago

      Thanks,

      I am able to get the %diff value when I am keeping date filed in column since e have used Max Date concept here. But how i can Month name, quarter , Fin Year etc in a hierarchy and put that in column. And based on lower drill down value ( in this case it is month ) I will get % diff . How a dynamic calculation we can do ?