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 $849,400 Shop direct labor 620,000 35,200 97,800 17,700 Shop and repair equipment depreciation Shop supervisor salaries Shop property taxes Shop supplies Advertising expense Administrative office salaries 13,600 17,000 73,000 Administrative office depreciation expense 9,300 Total costs and expenses $1,733,000 The average shop direct labor rate is $20.00 per hour. Determine the predetermined shop overhead rate per direct labor hour. Round the answer to nearest whole cent. $ per direct labor hour