ive It Cruiseline offers nightly dinner cruises departing from several cities on the eastern coast of the United States including Charleston, Baltimore, and Alexandria. Dinner ruise tickets sell for $80 per passenger. Live It Cruiseline's variable cost of providing the dinner is $40 per passenger, and the fixed cost of operating the vessels (depreciation alaries, docking fees, and other expenses) is $240,000 per month. The company's relevant range extends to 19,000 monthly passengers. f Live It Cruiseline sells an additional 400 tickets, by what amount will its operating income increase (or operating loss decrease)? First, identify the formula, then compute the operating income increase (or operating loss decrease) Operating income increase 776000 Contribution margin per passengerx Additional tickets sold 40 19400