Circular Dependency when using variable in measures

You have a couple of typos in your formulas, but there is no circular dependency anywhere.

% of TOTAL A = 
VAR ANUMERATOR =
    DIVIDE (
        CALCULATE (
            SUM ( 'Data'[Value] ),
            'Data'[Group] <> "A",
            'Data'[Type Cost] = "Add Year"
        ),
        1000
    )
VAR ADENOMINATOR =
    DIVIDE ( SUM ( 'Data'[Multiplier] ) * SUM ( Data[ TOTAL A ] ), 1000 )
RETURN
    DIVIDE ( ANUMERATOR, ADENOMINATOR )

% of TOTAL B =
VAR BNUMERATOR =
    DIVIDE (
        CALCULATE (
            SUM ( 'Data'[Value] ),
            'Data'[Group] <> "A",
            'Data'[Type Cost] = "Add Year",
            'Data'[Type] = "Non-Recoverable"
        ),
        1000
    )
VAR BDENOMINATOR =
    DIVIDE ( ( SUM ( 'Data'[Multiplier] ) * SUM ( 'Data'[ TOTAL B ] ) ), 1000 )
RETURN
    DIVIDE ( BNUMERATOR, BDENOMINATOR )