Answer:
$16.00
Explanation:
Predetermined manufacturing overhead rate = Budgeted Overheads ÷ Budgeted Activity
therefore,
Predetermined manufacturing overhead rate = $32,320 ÷ 2,020
                                      = $16.00
Applied overheads = Predetermined manufacturing overhead rate x Actual activity
therefore,
Applied overheads = $16.00 x 2,410 = $38,560
Conclusion :
Under-applied overheads = $72,200 - Â $38,560
                      = $33,640
the predetermined manufacturing overhead rate per direct labor hour for the year is  $16.00