Grover Company has the following data for the production and sale of 2,000 units.

Sales price per unit	$	850	per unit
Fixed costs:
Marketing and administrative	$	320,000	per period
Manufacturing overhead	$	260,000	per period
Variable costs:
Marketing and administrative	$	55	per unit
Manufacturing overhead	$	85	per unit
Direct labor	$	105	per unit
Direct materials	$	270	per unit

What is the variable manufacturing cost per unit?

$460

$515

$590

$805