Answer:
$30,000 increase
Explanation:
Piper Corp is operating at 70% capacity, and so we can produce the unit in-house at no increase to fixed cost we are already incurring. So we assume fixed cost for the extra production is zero
Without fixed cost the unit can be produced at $26, so cost of producing the units needed= 26*15,000= $390,000
To buy the product we need $24 per unit, so the cost of buying the needed units is= 24* 15,000= $360,000
The differential cost of making the part rather than purchasing it = Cost of inhouse production- Cost of Buying= 390,000- 360,000= $30,000