Assume the economy of Atlantis only produces fish (point F). Calculate the opportunity cost of producing potatoes in 200 pound increments. Opportunity cost of increasing production from 0 pounds to 200 pounds of potatoes: pounds of fish. Opportunity cost of increasing production from 200 pounds to 400 pounds of potatoes: pounds of fish. Opportunity cost of increasing production from 400 pounds to 600 pounds of potatoes: pounds of fish. Opportunity cost of increasing production from 600 pounds to 800 pounds of potatoes: pounds of fish. Opportunity cost of increasing production from 800 pounds to 1,000 pounds of potatoes: pounds of fish.