Answer:
The net incremental cost of buying from the supplier is $2.30 per unit
Step-by-step explanation:
Cost of producing the product in-house:
Direct materials cost $10.10
Labor cost $24.10
Overhead $16.10
Total cost $50.30
Cost of purchasing externally is computed thus:
Purchase price $46.16
unavoidable overhead cost(40%*$16.10) $6.44
Total cost $52.6
By buying externally from the supplier,Wheeler company would incur additional cost of $2.30($52.6-$50.3) on every unit purchased from the supplier.