Calculated column DAX for cumulative cost saving

Hi neees78 
Please refer to attached sample file with the proposed solution. Hope this is what you're looking for

Daily Cost = 
VAR StartingValue = 100000
VAR CurrentDate = SELECTEDVALUE ( 'Table'[Target Date] )
VAR CurrentID = SELECTEDVALUE ( 'Table'[ID] )
VAR SelectedTable = ALLSELECTED ( 'Table' )
VAR TableOnAndBefore = 
    FILTER ( 
        SelectedTable, 
        VALUE ( 'Table'[Target Date] ) * 1000000 + 'Table'[ID] 
            <= VALUE ( CurrentDate ) * 1000000 + CurrentID 
    )
VAR AccumulatedSaving = SUMX ( TableOnAndBefore, 'Table'[New Savinng] )
RETURN
    IF ( 
        HASONEVALUE ( 'Table'[ID] ),
        StartingValue - AccumulatedSaving
    )