Compare monthly average vs Total Average

Hi romovaro ,

Based on the sample and description you provided, Please try code as below.
My Sample:

Total Average =
VAR _Day =
    SUM ( 'LOA assignations'[LOA Sig date vs greenlight date] )
VAR CNT =
    COUNTROWS ( 'LOA assignations' )
RETURN
    _Day / CNT

LOA Month Comp =
AVERAGE ( 'LOA assignations'[LOA Sig date vs greenlight date] )
    - SELECTEDVALUE ( 'LOA assignations'[Total Average] )

Result is as below.

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Best Regards,
Yulia Yan

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