The Finnish army would like to make a one time-only purchase of 10,000 pairs of ski poles for its mountain troops. The army would pay a fixed fee of 4 per pair, and in addition it would reimburse the Pietarsaari Oy company for its manufacturing costs (both fixed and variable). Due to a recession, the company would otherwise produce and sell only 40,000 pairs of ski poles this year. If the Pietarsaari Oy company accepts the army's offer, by how much would net operating income increase or decrease from what it would be if only 40,000 pairs of ski poles were produced and sold during the year