Sum of a measure

[Pharms]

Hi all and thank you for any advice

Relatively new to all this and have hit a wall! I am working with SQL as my data source and I have three tables, filtered by the slicer.

The name is me so not too worried that is showing! The first table is a countrows of the class code, the second is a countrows of user id in those classes. The third contains a measure that multiplies periods by pupils, by class. All good so far. The totals in the first two tables are fine, and I understand why the total in the third table is what it is, but that is not what I want. My plan is to turn the total off in the third column and what I would like to do is have the sum of the commitments column of the filtered data in a card.

I have read quite a few posts but struggling to make sense of it all.

ANy help gratefully recieved.

Apologies if I have waffled!

[Pharms]

Amazing, that worked!!! Thank you so much.

[johnt75]

I think you want something like

Commitment by class =
SUMX ( VALUES ( 'Table'[Class] ), [Pupils] * [Periods] )

[Pharms]

Thank you for your help so far. I went with

Commitments by class v2 = SUMX ( VALUES ( 'Timetable Schedule'[txtCode] ), COUNTA('Set Lists'[txtSchoolID]) * COUNTA('Timetable Schedule'[txtCode]) )

but that gave me an even larger total! Think I am going wrong somewhere.

[johnt75 · Accepted solution]

If you're not using a measure then you need CALCULATE to force context transition. Try

Commitments by class v2 =
SUMX (
    VALUES ( 'Timetable Schedule'[txtCode] ),
    CALCULATE ( COUNTA ( 'Set Lists'[txtSchoolID] ) )
        * CALCULATE ( COUNTA ( 'Timetable Schedule'[txtCode] ) )
)