Predetermined Factory Overhead Rate Exotic 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 $863,100 Shop direct labor 630,000 Shop and repair equipment depreciation 35,200 Shop supervisor salaries 97,900 Shop property taxes 17,800 Shop supplies 13,600 Advertising expense 17,300 Administrative office salaries 74,200 Administrative office depreciation expense 9,500 Total costs and expenses $1,758,600 The average shop direct labor rate is $18.00 per hour. Determine the predetermined shop overhead rate per direct labor hour. Round the answer to nearest whole cent. per direct labor hour