The following materials standards have been established for a particular raw material used in the company's sole product: Standard quantity per unit of output......... Standard price.. 0.5 pound $16.60 per pound The following data pertain to operations concerning the product for the last month: $34,650 Actual cost of materials. Actual materials used in production Actual output 1,900 pounds 4,200 units What is the materials price variance for the month? 53,320 U $3,320 F $3,1100 $6,430 F 53,110 F