Hi, can someone help me with this question? The answer is $30 but I do not know how to derive. Thanks so much in advance

Question 4 Incorrect Mark 0.00 out of 2.00 Y Flag question i mood le.r.elr.unsw.edu au 1:) o The following information relates to Question 1. Question 1 Super Electronics Ltd manufactures computers and notebooks. The company has the two support departments that provide services to two manufacturing departments. The following information is available. Manufacturing Departments Machining Packing Direct labour hours 2, 000 48, 000 Usage of Personnel (labour hours) 50 100 Usage of Computing (labour hours) 50 50 Departmental costs: Direct material (5) 500, 000 800, 000 Direct labour ($) 120, 000 700, 000 Manufacturing overhead ($) 650, 000 350, 000 Total ($) 1,270,000 1. 850. 000 Support Departments Personnel Computing Labour hours 1, 000 2, 500 Departmental costs: Direct labour and materials (Variable) ($) 100, 000 150. 000 Fixed overhead ($) 50, 000 200, 000 TOtBI (3) 150, 000 350, 000 Calculate the plantwide overhead rate if Super Electronics uses direct labour hours to assign overhead to products. Please round your answer to 2 dec places