Answer:
Increase in operating income.
Step-by-step explanation:
If a special sales order is accepted where fixed costs remain unchanged and no variable marketing and administrative costs are incurred, there will be an increase in the operating income of the company, assuming that there is no adverse effect to the regular sales.
In recording the transaction, what will be presented are the special order price and the variable manufacturing costs. This results to manufacturing contribution margin.
Thus, whatever increase in the contribution margin will have the same increase in the operating income because of the absence of the variable selling and administrative costs.