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 Star100 and the Star150, which differ in terms of capabilities. The following information is available:

Costs per Unit	Star100			Star150
Direct materials	$	130		$	150
Direct labor		60			80
Variable overhead		30			40
Fixed overhead		180			240
Total cost per unit	$	400		$	510
Price	$	580		$	780
Units sold		4,000			2,000

The average wage rate is $40 per hour. Variable overhead 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.

Required:

a. A nationwide car-sharing service has offered to buy 2,500 Star100 systems and 2,500 Star150 systems if the price is lowered to $400 and $500, respectively, per unit.

a-1. If Unter accepts the offer, how many direct labor-hours will be required to produce the additional systems?

Direct labor-hours________

a-2. Complete the following table to determine the differential profit increase (or decrease) if Unter accepts this proposal. Prices on regular sales will remain the same.

Differential revenues:
Star 100
Star 150
Differential costs:
Star 100
Star 150
Differential profit (loss)

b-1. Supposed that the car-sharing service has offered instead to buy 3,500 each of the two models at $400 and $500, respectively. This customer will purchase the 3,500 units of each model only in an all-or-nothing deal. That is, Unter must provide all 3,500 units of each model or none. Unters 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. Complete the table below to determine the total contribution margin with the special order added.

	Star100	Star150	Total
Special Order:
Contribution margin per unit
Number of units
Total contribution margin
Regular production:
Contribution margin per unit
Number of units
Total contribution margin
Total contribution margin for both:

b-2. 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.

Answer: Increase in profit or Decrease in profit. $__________

c-1. Assume that, in the situation presented in requirement b-1, the plant can work overtime. Direct labor costs for the overtime production inrease to $60 per hour. Variable overhead costs for overtime production are $10 per hour more than for normal production. Complete the table below to determine the total contribution margin

	Star100	Star150	Total
Special Order:
Contribution margin per unit
Number of units
Total contribution margin
Regular production:
Contribution margin per unit
Number of units
Total contribution margin
Total contribution margin for both:
Additional direct-labor costs
Additional variable overhead
Total contribution margin for both (with additional costs):

c-2. How much will the profits change in this situation?

Answer: Increase in profit or Decrease in profit, $________________