You're an analyst for Royal Caribbean, a primary cruise line servicing the Caribbean Sea. In 2021, the price of a seven-day Caribbean cruise was $1,500 per ticket. A year later, as demand increased as COVID cases fell, the price per person rose to $2,000 per ticket. The accompanying table provides information on the supply of cruise travel. If the marginal cost of providing a ticket on a cruise for one traveler is $1,200, what was the change in producer surplus from 2021 to 2022 ? SO $1.7 million $2.1 million $4.2 million.