Dynamic Reference Line on line chart

Hi  ajazz ,

Sorry for the late reply.

Create 2 measures as below：

Average =
AVERAGEX (
    FILTER (
        ALLSELECTED ( MedicinPriserUnpivot ),
        'MedicinPriserUnpivot'[Varenummer] = MAX ( MedicinPriserUnpivot[Varenummer] )
            && 'MedicinPriserUnpivot'[Dato] = MAX ( 'MedicinPriserUnpivot'[Dato] )
    ),
    'MedicinPriserUnpivot'[Pris]
)

Measure2 =
VAR _tab =
    CALCULATETABLE (
        VALUES ( 'Vareoversigt'[Varenummer] ),
        FILTER (
            ALL ( Vareoversigt ),
            'Vareoversigt'[Substitutionsgruppe]
                IN FILTERS ( Vareoversigt[Substitutionsgruppe] )
        )
    )
RETURN
    CALCULATE (
        MINX ( ALLSELECTED ( MedicinPriserUnpivot ), [Average] ),
        FILTER (
            ALLSELECTED ( 'MedicinPriserUnpivot' ),
            'MedicinPriserUnpivot'[Dato] = MAX ( 'MedicinPriserUnpivot'[Dato] )
                && 'MedicinPriserUnpivot'[Varenummer] IN _tab
        )
    ) + 50

And you will see:

For the related .pbix file,pls see attached.

Best Regards,
Kelly

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