Special order carson manufacturing, inc., sells a single product for $43 per unit. at an operating level of 8,000 units, variable costs are $18 per unit and fixed costs $10 per unit. carson has been offered a price of $27 per unit on a special order of 2,000 units by big mart discount stores, which would use its own brand name on the item. if carson accepts the order, material cost will be $2 less per unit than for regular production. however, special stamping equipment costing $14,000 would be ne