Answer:
Effect on income= $6,000 increase
Step-by-step explanation:
Because there is an unused capacity and it is a special order, we will not take into account the fixed costs.
Effect on income= total contribution margin
Unitary variable cost= 8 + 10 + 4= $22
Effect on income= 1,000*(28 - 22)
Effect on income= $6,000 increase