Final answer:
Bridgeport Manufacturing would realize a total cost savings of $60,520 by purchasing the sub-assembly parts from a supplier rather than making them in-house.
Step-by-step explanation:
The task is to calculate the total cost savings Bridgeport Manufacturing would realize by buying a sub-assembly part from a supplier rather than making it in-house. The in-house unit cost is $8.00, which includes $5.00 in variable costs and $3.00 in fixed costs. If the parts are purchased from the supplier at $5.60 per unit for 17,800 units, Bridgeport saves all variable costs and an additional $1.00 in fixed costs per unit.
To compute the savings, first calculate the cost of making the parts in-house: 17,800 units × $8.00/unit = $142,400. The cost to purchase from the supplier is: 17,800 units × $5.60/unit = $99,680. Next, we calculate the savings on fixed costs per unit, which is $1.00, thus 17,800 units × $1.00/unit = $17,800 saved in fixed costs.
Now, subtract the cost of purchasing from the cost of making the parts in-house and add the fixed cost savings: ($142,400 - $99,680) + $17,800 = $60,520 in total savings.
The total cost savings that Bridgeport will realize by buying the part is $60,520.