2005 betaine 54, 100-d 40000

Coast Cruisetine offers nightly dinner cruises departing from several cities on the East Caast of tha United States including Charleston, Baltimore, and A exazdria. Dinner cruise tickets sell for $80 per pessenger. Coast Cruiseline's variable cost of providing the cinner is $40 per passenger, and the fred cost of operating the vesseis (depreciation, salaries, docking feos, and oliner expenses) is $360,000 per month. The company's relevant range extends to 14,000 monithly passengers. If Coast Cruiseline sols an addilicnal 600 tickets, by what amount will iks cperating income increase (or operating loss decrease)? Finet iriontifu tha formula then comoute the operating income increase (or operating loss decrease)