X Company uses the high-low method to predict monthly overhead costs. The following were January and March cost and activity results: January March OH Cost $6,042 $12,459 Production 1,150 4,600 If December production is expected to be 1,350 units, what are expected total fixed overhead costs in December [round unit costs to two decimal places)? X Company uses the high-low method to predict monthly overhead costs. The following were January and March cost and activity results: January March OH Cost $6,042 $12,459 Production 1,150 4,600 If December production is expected to be 1,350 units, what are expected total fixed overhead costs in December [round unit costs to two decimal places)