Comprehensive Ghana Limited has prepared the following standard cost card: GH per unit Materials (4 kg at GH4.50 per kg) 18 Labour (5 hrs at GH5 per hr) 25 Variable overheads (5 hrs at GH2 per hr) 10 Fixed overheads (5 hrs at GH3 per hr) 15 GH68 Budgeted selling price GH75 per unit. Budgeted production 8,700 units Budgeted sales 8,000 units There is no opening inventory. The actual results are as follows: Sales: 8,400 units for GH613,200 Production: 8,900 units with the following costs: Materials (35,464 kg) 163,455 Labour (Paid 45,400hrs; worked 44,100 hrs) 224,515 Variable overheads 87,348 Fixed overheads 134,074 Required: Using the above data, analyse each of the cost variances: i. Materials ii. Labour iii. Variable Overheads iv. Fixed Overheads