Wildhorse Corporation manufactures a single product. Monthly production costs incurred in the manufacturing process are shown below for the production of 4,000 units. Direct materials $8,392 Direct labor 28,573 Utilities 3,936 Property taxes 1.119 Indirect labor 5,035 Supervisory salaries 2,126 Maintenance 1.824 Depreciation (straight-line) 2.686 The utilities and maintenance costs are mixed costs. The fixed components of these costs are $336 and $224, respectively. (b1) Calculate unit variable cost, unit variable cost for utilities and unit variable cost for maintenance. Exclude mixed costs in the calculation for unit variable cost. (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 $