Bonehead Co. has the following factory overhead costs:

std o/h applied to this period's production- $72000

flexible budget for o/h based on output (ie units produced)- 65000

total budgeted o/h in the master (static) budget- 86000

actual total o/h cost incurred during the period- 76000

The factory overhead production volume variance for Bonehead Co. this period is:

$4000 unfav

$7000 fav

$10000 fav

$11000 unfav

$14000 unfav