Carla Vista Creations purchased 7900 feet of copper tubing at a price of $2.90 per foot and used 8200 feet during the period. The standard price of the copper tubing was $2.70 per foot. What is Carla Vista Creations direct materials price variance for the period?

Select answer from the options below

$870 favorable

$1580 favorable

$1580 unfavorable

$870 unfavorable