B. An extract of a standard cost card shows the following details of product M: RM per unit Variable overheads: 5 machine hours at RM10 per machine hour 50 Fixed overheads 30 The actual production of Product M for May amounted to 6,500 units and the budgeted production planned for was 7,000 units. The machines actually worked for 35,000 machine hours. The actual overheads incurred were: Variable overheads Fixed overheads RM270,000 RM190.000 Required: Calculate the following: i Variable overheads expenditure variance (4 marks) ii. Variable overheads efficiency variance (4 marks) ii. Fixed overheads expenditure variance (3 marks) iv. Fixed overheads efficiency variance (4 marks)