Gregory Company has identified three cost pools to allocate overhead costs. The following estimates are provided for the coming year: Cost Pool Overhead Costs Cost driver Activity level Supervision of direct labor $326,000 Direct labor-hours 900,000 Machine maintenance $132,000 Machine-hours 960,000 Facility rent $217,000 Square feet of area 100,000 Total overhead costs $675,000 The accounting records show the Mossman Job consumed the following resources: Cost driver Actual level Direct labor-hours 200 Machine-hours 1,500 Square feet of area 70 If direct labor-hours are considered the only overead cost driver, what is the single cost driver rate for Gregory