Answer:
Material price variance = $3,950 unfavorable
Step-by-step explanation:
A material price variance occurs where materials are purchased at a price either lower or higher than the standard price. A favorable variance is recorded where the actual total cost of materials is lower that the standard cost. While an adverse variance implies the opposite.
$
7,900 meters should gave cost ( 7,900× 17.70) 139,830
but did cost 143,780
Material price variance 3,950 Unfavorable
Material price variance = $3,950