Final answer:
The maximum price per unit that PEC should be willing to pay for part XG72 is $108.20.
Step-by-step explanation:
To determine the maximum price per unit that Premium Engine Company (PEC) should be willing to pay for part XG72, we need to consider the cost savings from purchasing it from an outside supplier.
If PEC purchases XG72 from the supplier, they can save 10% of the fixed overhead costs, which amounts to $1,800 ($18,000 x 10%).
Therefore, the maximum price per unit that PEC should be willing to pay is the total manufacturing cost minus the cost savings from purchasing it from the supplier, divided by the number of units (1,000).
Maximum price per unit = (Total manufacturing cost - Cost savings) / Number of units = ($110,000 - $1,800) / 1,000 = $108.20