Oxford Co. has a material standard of 2.1 pounds per unit of output. Each pound has a standard price of $13 per pound. During February, Oxford Co. paid $57,700 for 4,910 pounds, which were used to produce 2,430 units. What is the direct materials quantity variance? (Do not round your intermediate calculations.) $2,509 favorable $10,050 unfavorable $9,290 favorable $1,590 unfavorable