Spread total over rows

Hi, paulfink 

Based on your description, I created data to reproduce your scenario. The pbix file is attached in the end.

Table:

Value(Measure):

Value = 
var _pro = SELECTEDVALUE('Table'[Project])
var _task = SELECTEDVALUE('Table'[Task])
return
SWITCH(
    _pro,
    1,
    SWITCH(
        _task,
        "A",10,
        "B",15,
        "C",20
    ),
    2,
    SWITCH(
        _task,
        "A",5,
        "B",10,
        "C",15
    )
)

You may create a measure like below.

Desired = 
var tab = 
SUMMARIZE(
    ALL('Table'),
    'Table'[Project],
    'Table'[Task],
    "Value",
    var _pro = 'Table'[Project]
    var _task = 'Table'[Task]
    return
    SWITCH(
        _pro,
        1,
        SWITCH(
            _task,
            "A",10,
            "B",15,
            "C",20
        ),
        2,
        SWITCH(
            _task,
            "A",5,
            "B",10,
            "C",15
        )
    )
)
return
SUMX(
    FILTER(
        tab,
        [Project]=SELECTEDVALUE('Table'[Project])
    ),
    [Value]
)

Result:

Best Regards

Allan

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