Rio manufactures door locks to order. Production departments Budgeted overhead Welding Assembly $12,000 $20,000 Materials Labour Budgeted activity 3,000 labour hrs 2,000 labour hrs Selling and admin OH are 25% of factory cost. An order for 500 locks, made as Batch 38, incurred: $24,000 200 hrs in welding @$5 per hour 400 hrs in assembly @ $10 per hour $1,000 was paid for X-ray equipments to test the accuracy of Welds Required: Calculate the cost per unit for batch 38.