Hi  Kayla2501 ,

I created some data:

P6 Cashflow：

Project Status Outputs：

Here are the steps you can follow：

1. Create measure.

Measure_group =
SUM('P6 Cashflow'[Cost])
*
SUMX(
    FILTER(ALL('Project Status Outputs'),
    'Project Status Outputs'[Status Dates]=MAX('P6 Cashflow'[Current Status (Date)])&&'Project Status Outputs'[numbers]=MAX('Project Status Outputs'[numbers])),[Confidence Factor])

2. Result:

If you need pbix, please click here.

If I have misunderstood your meaning, please provide your desired output.

Best Regards,

Liu Yang

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