how to solve

Oxford Co. has a materials standard of 21 pounds per unit of output. Each pound has a standard price of $12 per pound. During February Oxford Co paid $57600 for 4,910 pounds, which were used to produce 2.480 units. What is the direct materials price variance? Multiple Choice $1.320 unfavorable $1.880 unfavorable $1.880 favorable S 999 hla