The following materials standards have been established for a particular product: Standard quantity per unit of output Standard price 5.5 pounds $14.30 per pound The following data pertain to operations concerning the product for the last month: Actual materials purchased Actual cost of materials purchased Actual materials used in production Actual output 6,450 pounds $63,980 5,950 pounds 810 units The direct materials purchases variance is computed when the materials are purchased. What is the materials quantity variance for the month? Multiple Choice $4,960 U $14,829 U $21,379 U $7,150 U