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 Shop direct labor $1,035,700 756,000 Shop and repair equipment depreciation 49,300 Shop supervisor salanes 137,100 Shop property taxes 24,900 Shop supplies Advertising expense Administrative office salaries 19.100 20,700 89,100 Administrative office depreciation expense Total costs and expenses 11,400 $2,143,300 The average shop direct labor rate is $21.00 per hour. Determine the predetermined shop overhead rate per direct laber hour. Round the answer to nearest whole cent. X per direct labor hour