Hykes Corporation's manufacturing overhead includes $$4\mathrm{.}70$ per machine$-$hour for supplies; $$4\mathrm{.}70$ per machine$-$hour for indirect labor; $$58,800$ per period for salaries; and $$52,040$ per period for depreciation.

Required:

Determine the predetermined overhead rate if the denominator level of activity is $3,400$ machine$-$hours. $($Round your answer to $2$ decimal places.$)$