Answer:
Change in profit is Nil
Explanation:
To determine whether to outsource the production of product X or not, we would compare the variable cost internal production to the external purchase price. And then adjust the net figure for the fixed costs.
For a make or buy decision the relevant cash flows include
1. the differential variable cost of the two options
2. savings from avoidable fixed costs associated with internal production
$
Variable cost internal production (2+7+5) 14
External buy in price 12
Savings per unit of bought from outside 2
Savings on 1000 units (2× 1,000) 2,000
Unavoidable fixed cost (2 × 1,000) (2,000)
Net change in profit Nil
Note we assume that the fixed overhead is unavoidable. That is it will still be incurred whether or the product is outsourced