PCB Corporation manufactures a single product. Monthly production costs incurred in the manufacturing process are shown below for the production of 3,123 units. The utilities and maintenance costs are mixed costs. The fixed portions of these costs are $312 and $208, respectively. Production in Units 3,123 Production Costs Direct materials $7,808 Direct labor 18,738 Utilities 2,186 Property taxes 1,041 Indirect labor 4,685 Supervisory salaries 1,978 Maintenance 1,145 Depreciation 2,498 (61) Calculate variable costs per unit, variable cost per unit for utilities and variable cost per unit for maintenance. Exclude mixed costs in the calculation for variable cost per unit. (Round answers to 2 decimal places e.g. 2.25.) Variable cost per unit (Exclude variable cost for utilities and maintenance) Variable cost per unit for utilities $ Variable cost per unit for maintenance $