Wheeler Company can produce a product that incurs the following costs per unit: direct materials, $10; direct labor, $22, and overhead, $16. An outside supplier has offered to sell the product to Wheeler for $40. If Wheeler buys from the supplier, it will still incur 40% of its overhead cost. Compute the net incremental cost or savings of buying. Options: $2.20 savings per unit. $2.20 cost per unit. $3.80 cost per unit. $1.60 savings per unit $3.40 savings per unit $3.40 cost per unit $4.00 savings per unit. $4.00 cost per unit. $1.60 cost per unit