Total column that sum's values from different rows

Hi DaGemsta ,

Please try this.

Check = 
VAR _ind = 'OnDemand'[Index]
VAR _preind = _ind - 1
VAR _onboardPreRow =
    CALCULATE (
        MAX ( 'OnDemand'[OnBoard] ),
        FILTER ( ALL ( 'OnDemand' ), 'OnDemand'[Index] = _preind )
    )
VAR _fuelinPostrow =
    CALCULATE (
        MAX ( 'OnDemand'[Fuel In] ),
        FILTER ( ALL ( 'OnDemand' ), 'OnDemand'[Index] = _ind )
    )
VAR _fueloutPostrow =
    CALCULATE (
        MAX ( 'OnDemand'[Fuel Out] ),
        FILTER ( ALL ( 'OnDemand' ), 'OnDemand'[Index] = _ind )
    )
VAR _subtotal = _onboardPreRow + _fuelinPostrow - _fueloutPostrow
RETURN
    _subtotal

Best Regards,
Gao
Community Support Team

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