Exeter has a materials standard of 1 pound per unit of output. Each pound has a standard price of $27 per pound. During July, Exeter paid $141,000 for 4,970 pounds, which it used to produce 4,760 units. What is the direct materials price variance?

$18,390 unfavorable $6,810 unfavorable $12,480 unfavorable $5,910 favorable