Answer:
If Impala decides to buy from the external source , it would then save the fixed of $1,750
Decision: Impala should be buy from the external source
Explanation:
To determine the appropriate course of action, we shall determine whether there would be a net savings in cash flow as a result of purchasing externally or not.
The relevant cash flows figures include:
Variable cost of internal production = 42,000 + 8,750 + 15,750 = 66,500
Increase in variable cost if purchased externally = 66500 - 66500 = 0
If Impala decides to buy from the external source , it would then save the fixed of $1,750
Decision: Impala should be buy from the external source