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Analitika
Post Prodigy
Post Prodigy

Calculating difference of values per different rows in same table in Power BI

Hello,

I am trying to calculate difference between values but getting wron answer.

Here is my data table as example.

Analitika_1-1634190428861.png

 

I have tried to use this formula:

Difference =
VAR _0 = MAXX(FILTER('x','x'[date]<EARLIER('x'[date]) && 'x'[ID]<EARLIER('x'[ID])),[date])
VAR _1 = MAXX(FILTER('x','x'[date] =_1 && 'x'[ID]<EARLIER('x'[ID]) ),[cre])
return
if('x'[deb] <> 0,_1 - 'x'[deb], blank())

 

My expected result is:

Analitika_2-1634190481766.png

But I am getting wrong result as:

 

Analitika_3-1634190531104.png

Seems that 0.87!=-3289.13.

So what's wrong with my query?

1 ACCEPTED SOLUTION
v-rzhou-msft
Community Support
Community Support

Hi @Analitika 

Try this code.

Difference = 
VAR _MaxDate =
    MAXX (
        FILTER (
            'x',
            'x'[date] > EARLIER ( 'x'[date] )
                && 'x'[ID] = EARLIER ( 'x'[ID] )
        ),
        [date]
    )
VAR _CRE =
    SUMX (
        FILTER ( ALL ( 'x' ), 'x'[date] = _MaxDate && 'x'[ID] = EARLIER ( 'x'[ID] ) ),
        [CRE]
    )
RETURN
    IF ( x[DET] <> 0, _CRE - x[DET], BLANK () )

Result is as below.

1.png

Best Regards,
Rico Zhou

 

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

View solution in original post

2 REPLIES 2
v-rzhou-msft
Community Support
Community Support

Hi @Analitika 

Try this code.

Difference = 
VAR _MaxDate =
    MAXX (
        FILTER (
            'x',
            'x'[date] > EARLIER ( 'x'[date] )
                && 'x'[ID] = EARLIER ( 'x'[ID] )
        ),
        [date]
    )
VAR _CRE =
    SUMX (
        FILTER ( ALL ( 'x' ), 'x'[date] = _MaxDate && 'x'[ID] = EARLIER ( 'x'[ID] ) ),
        [CRE]
    )
RETURN
    IF ( x[DET] <> 0, _CRE - x[DET], BLANK () )

Result is as below.

1.png

Best Regards,
Rico Zhou

 

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

amitchandak
Super User
Super User

@Analitika , small change

 

Column =
VAR _0 = MAXX(FILTER('x','x'[date]<EARLIER('x'[date]) && 'x'[ID]= EARLIER('x'[ID])),[date])
VAR _1 = MAXX(FILTER('x','x'[date] =_1 && 'x'[ID]= EARLIER('x'[ID]) ),[cre])
return
if('x'[deb] <> 0,_1 - 'x'[deb], blank())

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