Answer :
Advantage = $3
Explanation :
As per the data given in the question,
Particulars Manufacturing buying
Purchase from outside suppliers $15
Direct material $7
Direct labor $5
Variable manufacturing overhead $2
Fixed manufacturing overhead $4
Total cost $18 $15
Fixed manufacturing overhead = $5 × 80% = $4
Since it give the net advantage of $3
Hence, Supler Corporation should purchase from the outside supplier.
We compare the manufacturing and buying cost and according to the cost we take the decision. As we can see that the buying cost is less than the manufacturing cost so it would give the advantage of $3