Fatzinger Corporation has two production departments, Milling and Assembly. The company uses a job-order costing system and computes a predetermined overhead rate in each production department. The Milling Department's predetermined overhead rate is based on machine-hours and the Assembly Department's predetermined overhead rate is based on direct labor-hours. At the beginning of the current year, the company had made the following estimates:
Milling Assembly
Machine-hours 20,000 14,000
Direct labor-hours 2,000 7,000
Total fixed manufacturing overhead cost $137,000 $57,400
Variable manufacturing overhead per machine-hour $ 2.30
Variable manufacturing overhead per direct labor-hour $3.40
The predetermined overhead rate for the Assembly Department is closest to:__________.