Cullumber Corporation manufactures a single product. Monthly production costs incurred in the manufacturing process are showr below for the production of 3,200 units. The utilities and maintenance costs are mixed costs. The fixed components of these costs are $336 and $224, respectively. 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