Street Runner Engine Shop uses a job order cost system to determine the cost of performing engine repair work. Estimated costs and expenses for the coming period are as follows: Engine parts $632,900 Shop direct labor 462,000 Shop and repair equipment depreciation 37,400 Shop supervisor salaries 104,100 18,900 Shop property taxes Shop supplies Advertising expense 14,500 12,700 Administrative office salaries 54,400 7,000 Administrative office depreciation expense Total costs and expenses $1,343,900 The average shop director at $14 per hour. Determine the predetermined shop overhead rate per direct labor hour. Round the answer to nearest whole cont per direct labor hour