Michael corporation manufactures railroad cars, which is its only product. the standards for the railroad cars are as follows: standard tons of direct material (steel) per car 2 standard cost per ton of steel $ 16 during the month of march, the company produced 1 comma 500 cars. related production data for the month follows: actual materials purchased and used (tons) 6 comma 500 actual direct materials total cost $ 118 comma 000 what is the direct materials quantity variance for the month?