Calculate two columns when the third column contains a specific value

Hi JohanKraft ,

I created a sample pbix file(see the attachment), please check if that is what you want.

Count of Freight = 
VAR _orderno =
    SELECTEDVALUE ( 'Table'[Order no] )
RETURN
    CALCULATE (
        COUNT ( 'Table'[Order no] ),
        FILTER (
            ALLSELECTED ( 'Table' ),
            'Table'[Order no] = _orderno
                && IFERROR ( SEARCH ( "FREIGHT", 'Table'[Item no], 1, 0 ), 0 ) > 0
        )
    )

Sum of amount with special value = 
VAR _orderno =
    SELECTEDVALUE ( 'Table'[Order no] )
RETURN
    CALCULATE (
        SUM ( 'Table'[Amount] ),
        FILTER (
            ALLSELECTED ( 'Table' ),
            'Table'[Order no] = _orderno
                && [Count of Freight] > 0
        )
    )

Sum of amount without special value = 
VAR _orderno =
    SELECTEDVALUE ( 'Table'[Order no] )
RETURN
    CALCULATE (
        SUM ( 'Table'[Amount] ),
        FILTER (
            ALLSELECTED ( 'Table' ),
            'Table'[Order no] = _orderno
                && ISBLANK ( [Count of Freight] )
        )
    )

Best Regards