Answer: The answer is 15,000 units per annum
Step-by-step explanation:
for Atlanta:
Fixed cost = $80000
Variable cost = $20 per unit
For Phoenix:
Fixed cost = $140000
Variable cost = $16
Total cost = VC + FC
Since we do not know the number of units, let us represent it with 'n'
For Atlanta:
Total cost = $80000 + ($20 x n)
For Phoenix:
Total cost= $140000 + ($16 X n)
To calculate the indifference between locations, total cost of Atlanta and Phoenix must be equal, therefore we have:
80000 + 20n = 140000 + 16n
20n - 16n = 140000 - 80000
4n = 60000
Divide both sides by 4, we have:
n = 15,000 units per annum