Bakker Corporation has provided the following production and average cost data for two levels of monthly production volume. The company produces a single product.

Production volume 8,500 units 9,500 units
Direct materials $97.70 per unit $97.70 per unit
Direct labor $27.60 per unit $27.60 per unit
Manufacturing overhead $72.30 per unit $68.30 per unit

The best estimate of the total variable manufacturing cost per unit is:

$172.70
$159.60
$125.30
$166.00