Comparing value to previous Column in matrix

Hi VDebande ,

Please try:

Diff =
IF (
    SELECTEDVALUE ( 'Date'[Week] ) = 1,
    0,
    [YourMeasure]
        - CALCULATE (
            [Total Profit],
            'Date'[Week]
                = SELECTEDVALUE ( 'Date'[Week] ) - 1
        )
)

Diff% = 
VAR _cur_week = [Total Profit]
VAR _pre_week = CALCULATE([YourMeasure],'Date'[Week]=SELECTEDVALUE('Date'[Week])-1)
VAR _diff_rate = ABS(IF(SELECTEDVALUE('Date'[Week])=1,0, DIVIDE(_cur_week-_pre_week,_pre_week)))
VAR _result = IF(_cur_week>=_pre_week,_diff_rate,-_diff_rate)
RETURN
_result

Next, you can set the conditional format according to your needs.

Best Regards,
Gao
Community Support Team

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