Calculation

[Anonymous]

Hi everyone,

 I am trying to have my data at 1130 pm to minus data at 12 am on the same day. I dont know how to code that, sorry as i am  new to microsoft power bi.

In a separate column, i had these data extracted:

At 1130 = IF ([TimeKeys] =2330,'Main Data'[Energy (kWh)],BLANK())

At 12am = IF ([TimeKeys] =0000,'Main Data'[Energy (kWh)],BLANK())

Now, I am trying to get value at 1130PM to minus value at 12AM of the same day only

However, this is what i get if i directly minus both parameters:

[parry2k]

@Anonymous can you paste data in the table format (instead of image) and the expected output. Read this post to get your answer quickly.

https://community.powerbi.com/t5/Community-Blog/How-to-Get-Your-Question-Answered-Quickly/ba-p/38490

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[Anonymous]

Oh i am sorry, i am rather new here so i am not sure how to copy the table.

Expected output

Date/Time	At 1130 PM	At 12AM	Subtraction
22/1/22 11:30:00PM	150		105
22/1/22 12:00:00AM		45

[v-stephen-msft · Accepted solution]

Hi @Anonymous ,

Sample data

Here's my solution.

Create the following measures.

At 1130 PM =
CALCULATE (
    SUM ( 'Table'[Value] ),
    FILTER ( 'Table', FORMAT ( [Date/Time], "HH:MM:SS" ) = "23:30:00" )
)

At 12AM =
CALCULATE (
    SUM ( 'Table'[Value] ),
    FILTER ( 'Table', FORMAT ( [Date/Time], "HH:MM:SS" ) = "00:00:00" )
)

Subtraction =
VAR _1130PM =
    CALCULATE (
        SUM ( 'Table'[Value] ),
        FILTER (
            ALLSELECTED ( 'Table' ),
            FORMAT ( [Date/Time], "HH:MM:SS" ) = "23:30:00"
        )
    )
VAR _12AM =
    CALCULATE (
        SUM ( 'Table'[Value] ),
        FILTER (
            ALLSELECTED ( 'Table' ),
            FORMAT ( [Date/Time], "HH:MM:SS" ) = "00:00:00"
        )
    )
RETURN
    _1130PM - _12AM

Best Regards,

Stephen Tao

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