At the beginning of 2019, accountants in Clay Inc. estimated the firm would use 45,500 machine hours, and incur factory overhead costs of $221,175. Actual machine hours used were 58,000 and actual overhead cost was $235,000. The controller of Clay Inc. discovered that a sizeable portion of the overhead costs are related to the number of inspections required by a job. He proposes to use activity-based costing, and has collected the following information related to activity for the coming year:

$3.51 per inspection

$15.00 per inspection

$.070 per inspection

$14.20 per inspection

Given the above information the predetermined overhead rate for the inspection activity would be: