Buker Corporation bases its predetermined overhead rate on the estimated machine-hours for the upcoming year. Data for the upcoming year appear below:

Estimated machine-hours	72,500
Estimated variable manufacturing overhead	$3.30	per machine-hour
Estimated total fixed manufacturing overhead	$838,720

The predetermined overhead rate for the recently completed year was closest to:

$9.90

$6.73

$8.64

$14.87