The following materials standards have been established for a particular product. Standard quantity per unit of output 78 Pounds per Standard price $14.90 pound The following data pertain to operations concerning the product for the last month: Actual materials purchased 6,800 Pounds $93,200 Actual cost of materials purchased Actual materials used in production 6.100 Pounds Actual output 1,250 Units What is the materials quantity variance for the month