Conditional Formatting for Matrix Based on Movement

Thanks for the reply from speedramps, please allow me to provide another insight.
Hi mojekk ,

Please refer to the following steps.

Create two rating tables, derived from the PREVIOUS RATING and CURRENT RATING fields, and establish a relationships.Use the fields from these two tables as the rows and columns of the matrix.

Previous rating = GENERATESERIES(MIN('Table'[PREVIOUS RATING]),MAX('Table'[PREVIOUS RATING]),1)

Current rating = GENERATESERIES(MIN('Table'[CURRENT RATING]),MAX('Table'[CURRENT RATING]),1)

Creates a measure to display the OUTSTANDING BALANCE and uses this measure as the value field of the matrix.

Sum of Outstanding Balance = 
IF (
    MAX ( 'Table'[RATING MOVEMENT] ) <> BLANK (),
    SUM ( 'Table'[OUTSTANDING BALANCE] ),
    0
)

 
Creates measures for the background color and font color to be used for the matrix values.

BackgroundColor = 
VAR rating_movement = MAX('Table'[RATING MOVEMENT])
VAR previous_rating = MAX('Previous rating'[value])
VAR current_rating = MAX('Current rating'[value])
VAR _result = SWITCH(rating_movement,
        "UPGRADE","green",
        "REMAIN","black",
        "DOWNGRADE","red"
        )
RETURN
SWITCH(TRUE(),
        previous_rating<current_rating, IF(rating_movement<>BLANK(),_result,"red"),
        previous_rating=current_rating,IF(rating_movement<>BLANK(),_result,"black"),
        previous_rating>current_rating,IF(rating_movement<>BLANK(),_result,"green")
)

FontColor = 
IF([Sum of Outstanding Balance]=0,
SWITCH([BackgroundColor],
        "red","red",
        "black","black",
        "green","green"),
        "white"
)

The final resutl is as follows. Hopefully it will meet your needs.

Please see the attached pbix for reference.

Best Regards,
Dengliang Li

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