Inman Corporation manufactures a single product. The standard cost per unit of product is as follows: Direct materials2 kg of plastic at $5.50 per kilogram | | $11.00 | | Direct labour2 hours at $11.35 per hour | | 22.70 | | Variable manufacturing overhead | | 9.80 | | Fixed manufacturing overhead | | 5.30 | | Total standard cost per unit | | $48.80 | | The master manufacturing overhead budget for the month based on the normal productive capacity of 20,800 direct labour hours (10,400 units) shows total variable costs of $104,000 ($5 per labour hour) and total fixed costs of $83,200 ($4 per labour hour). Normal production capacity is 20,800 direct hours. Overhead is applied based on direct labour hours. Actual costs for producing 10,140 units in November were as follows: Direct materials (20,500 kg) | | $111,725 | | Direct labour (20,280 hours) | | 234,234 | | Variable overhead | | 101,920 | | Fixed overhead | | 82,160 | | Total manufacturing costs | | $530,039 | | The purchasing department normally buys the quantities of raw materials that are expected to be used in production each month. Raw materials inventories, therefore, can be ignored. | | | |