Answer:
3,700 unfavorable.
Explanation:
[tex](standard\:quantity-actual\:quantity) \times standard \: cost = DM \: efficiency \: variance[/tex]
std quantity 5100 units
actual quantity 5150 units
std cost $74.00
difference -50.00 units at $74
efficiency variance $(3,700.00)
The diference between standard and actual units is negative, the variance is unfavorable.