Exotic Engine Shop uses a job order cost system to determine the cost of performing engine repair work. Estimated costs and expense for the coming period are as follows: Engine parts $1,233,000 Shop direct labor 900,000 Shop and repair equipment depreciation 85,600 Shop supervisor salaries 238,000 Shop property taxes 43,200 Shop supplies 33,200 Advertising expense 24,700 Administrative office salaries 106,000 Administrative office depreciation expense 13,600 Total costs and expenses $2,677,300 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