Caltex Products plc manufactures electric mini-lawnmowers. Its sales and costs' budget for November 202 is as follows: Sales: 3000 units 72/ unit Costs: Direct materials (metal): 3000 units (1kg per unit 14/kg) Direct materials (plastic) 3000 units (0.5kg per unit 7/kg) Direct labour: 3000 units (0.75 hours per unit 8/hr) Production overhead 86500 Other overheads 31000 The company does not absorb production overheads using an overhead absorption rate. - It may be assumed that all of its overheads are fixed in nature. The company's actual results for the same month (November) are as follows: Sales: 2950 units 73/ unit Costs: Direct materials (metal): 2950 units (0.9kg per unit 13.80/kg) Direct materials (plastic): 2950 units (0.5kg per unit 7.20/ unit) Direct labour: 2950 units (0.7 hrs per unit 8.20/hr) Production overhead: 84250 Other overheads: 32250 Net profit: 34658 Calculate: ci) Sales price variance 1. ii) Sales profit - volume variance iii) Materials price variance (both materials) 1. iv) Labour rate variance 2. v) Labour efficiency variance 3. vi) Overhead variances (both) 4. Comment on your calculations produced in c ( ivi) above