Unter components manufactures low-cost navigation systems for installation in ride-sharing cars. It sells these systems to various car services that can customize them for their locale and business model. It manufactures two systems, the Star 100 and the Star 150, which differ in terms of capabilities. The following information is available:

Star 100 (cost per unit):

Direct materials 140, Direct labor 60, Variable OH 30, Fixed OH 180, Price 580, Units sold 4,500

Star 150 (cost per unit):

Direct materials 155, Direct labor 80, Variable OH 40, Fixed OH 240, Price 780, Units sold 1,500

The average wage rate is $40 per hour. Variable OH varies with the quantity of direct labor-hours. The plant has a capacity of 20,000 direct labor-hours, but current production uses only 10,000 direct labor-hours.

A. A nationwide car-sharing service has offered to buy 2500 Star 100 systems and 2500 Star 150 systems if the price is lowered to $400 and $500, respectively, per unit. If Unter accepts the offer, how many direct-labor hours will be required to produce the additional systems? How much will the profit increase (or decrease) if Unter accepts this proposal? Prices on regular sales will remain the same.

B. Suppose that the car-sharing has offered instead to buy 3500 each of the two models at $400 and $500, respectively. This customer will purchase the 3500 units of each model only in an all-or-nothing deal. That is, Unter must provide all 3500 units of each model or none. Unter's management has decided to fill the entire special order for both models. In view of its capacity constraints, Unter will reduce sales to regular customers as needed to fill the special order. How much will the profits change if the order is accepted? Assume that the company cannot increase its production capacity to meet the extra demand.

C. Answer the question in requirement (B), assuming instead that the plant can work overtime. Direct labor costs for the overtime production increase to $60 per hour. Variable overhead costs for overtime productionn are $10 per hour more than for normal production.