Vaughn Manufacturing incurred the following costs for 84000 units: Variable costs $504000 Fixed costs 392000 Vaughn has received a special order from a foreign company for 2500 units. There is sufficient capacity to fill the order without jeopardizing regular sales. Filling the order will require spending an additional $4500 for shipping. If Vaughn wants to earn $5000 on the order, what should the unit price be?