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Anonymous's avatar
Anonymous
Not applicable
4 years ago
Solved

Calculation with multible variables in time

Hi all,   I am facing a problem in my Power BI File.   I am making a calculation based on some variable. What I am doing is comparing two numbers (current and past period) with each other to calc...
  • v-zhangti's avatar
    v-zhangti
    4 years ago

    Hi, Anonymous 

     

    Based on the data you provide, you can try the following methods.

    Current value = SUM(Data[Value])
    Previous value = 
Var PrevDate=MAXX(FILTER(ALL('Data'[Date],Data[Year]),'Data'[Date]<SELECTEDVALUE('Data'[Date])&&[Year]=SELECTEDVALUE(Data[Year])),'Data'[Date])
Var Prevalue=CALCULATE([Current value],FILTER(ALL(Data),[Date]=PrevDate))
Return
Prevalue
    Outcome = IF([Previous value]<>BLANK(), [Current value]-[Previous value])

    The result of the calculation is different from the result you expect. Consider if there is a problem with your desired result calculation?

     

    Let me give you an example.

    But in your results.

    Please check if there is a problem with your result calculation in Excel, thank you.

     

    Best Regards,

    Community Support Team _Charlotte

    If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.

lbendlin's avatar
lbendlin
Icon for Super User rankSuper User
4 years ago

Please provide sanitized sample data that fully covers your issue. I can only help you with meaningful sample data.
Please paste the data into a table in your post or use one of the file services like OneDrive or Google Drive. Screenshots of your source data are not useful.

Anonymous's avatar
Anonymous
Not applicable
4 years ago

You may use the data of the picture. This is a simplified sample. I can not share other data due to the GDPR.

    • Anonymous's avatar
      Anonymous
      Not applicable
      4 years ago

      Herby simplified data.

       

      Data

      DateValueDimension
      1-1-2021100LY
      1-1-2021100LY
      1-1-2021125LY
      1-1-2021100LY
      30-1-2021125LY
      30-1-2021125LY
      30-1-2021150LY
      30-1-2021125LY
      28-2-2021200LY
      28-2-2021200LY
      28-2-2021200LY
      28-2-2021200LY
      30-3-2021300LY
      30-3-2021300LY
      30-3-2021300LY
      30-3-2021300LY
      30-4-2021500LY
      30-4-2021500LY
      30-4-2021500LY
      30-4-2021500LY
      30-5-2021600LY
      30-5-2021600LY
      30-5-2021600LY
      30-5-2021600LY
      30-6-20211000LY
      30-6-20211000LY
      30-6-20211000LY
      30-6-20211000LY
      30-7-20211000LY
      30-7-20211000LY
      30-7-20211000LY
      30-7-20211000LY
      30-8-20211300LY
      30-8-20211200LY
      30-8-20211300LY
      30-8-20211400LY
      30-9-20211500LY
      30-9-20211500LY
      30-9-20211500LY
      30-9-20211500LY
      30-10-20212500LY
      30-10-20212500LY
      30-10-20213000LY
      30-10-20212000LY
      30-11-20215000LY
      30-11-20215000LY
      30-11-20215000LY
      30-11-20215000LY
      30-12-20216500LY
      30-12-20216500LY
      30-12-20217000LY
      30-12-20216000LY
      1-1-2022500LY
      1-1-2022500LY
      1-1-2022500LY
      1-1-2022500LY
      30-1-2022750LY
      30-1-2022500LY
      30-1-20221000LY
      30-1-2022750LY
      28-2-20221000LY
      28-2-20221000LY
      28-2-20221000LY
      28-2-20221000LY
      30-3-20222000LY
      30-3-20222000LY
      30-3-20222000LY
      30-3-20222000LY
      30-4-20222500LY
      30-4-20222500LY
      30-4-20222500LY
      30-4-20222500LY
      30-5-20223000LY
      30-5-20223000LY
      30-5-20223000LY
      30-5-20223000LY
      30-6-20226500LY
      30-6-20223000LY
      30-6-20223000LY
      30-6-20223000LY
      30-7-20225000LY
      30-7-20226500LY
      30-7-20223000LY
      30-7-20223000LY
      30-8-20229000LY
      30-8-20226500LY
      30-8-20223000LY
      30-8-20223000LY
      30-9-202210000LY
      30-9-20226500LY
      30-9-20223000LY
      30-9-20223000LY
      30-10-202210000LY
      30-10-202210000LY
      30-10-20223000LY
      30-10-20223000LY
      30-11-202210000LY
      30-11-202210000LY
      30-11-20225000LY
      30-11-20223000LY
      30-12-202210000LY
      30-12-202210000LY
      30-12-202210000LY
      30-12-202210000LY

       

      Outcome needed

      YearMonthValue
      2021Januari100
      2021Februari275
      2021Maart400
      2021April800
      2021Mei275
      2021Juni400
      2021Juli800
      2021Augustus400
      2021September400
      2021Oktober800
      2021November400
      2021December1600
      2022Januari800
      2022Februari400
      2022Maart1600
      2022April0
      2022Mei400
      2022Juni1600
      2022Juli0
      2022Augustus1200
      2022September1600
      2022Oktober0
      2022November1200
      2022December800

       

      • lbendlin's avatar
        lbendlin
        Icon for Super User rankSuper User
        4 years ago

         

        Conditional Delta := 
var a = max(Data[Date])
var b = CALCULATE(max(Data[Date]),All(Data),Data[Date]<a)
var c = CALCULATE(sum(Data[Value]),all(Data),Data[Date]=b)
var d = CALCULATE(sum(Data[Value]),all(Data),Data[Date]=a)
return d-c

         

         

        see attached. You can modify as needed to cater for the dimension filters etc.