Answer:
financial advantage of purchasing from outside vendor = $36,000
Explanation:
outside vendor offers 18,000 units at $40 per unit = $720,000
current production costs (for 18,000 units):
total avoidable costs = $576,000
additional revenue generated by freed facilities = $180,000
financial advantage of purchasing from outside vendor = ($576,000 + $180,000) - $720,000 = $36,000