from the article, "...I note that the cost of housing per square foot in Biloxi, Mississippi, one of the poorest cities in the country, with a median household

from the article, "...I note that the cost of housing per square foot in Biloxi, Mississippi, one of the poorest cities in the country, with a median household income that is 60 percent below that of San Francisco, is $139 per square foot. And this is for a city that is not only poor but is chronically at risk of major flooding, which raises insurance costs and reduces home values. " So, San Fran residential real estate needs to be 28% cheaper than Biloxi?