AMTRAK TO THE RESCUE - All Aboard: The Complete North American Train Travel Guide - page 36

cities and towns, from one end of the country to the other. And
they did it at bargain prices. Even to this day, it is a fact that rev-
enues from rail fares and other sources cover about 80 percent of
the company's operating cost. That's really quite extraordinary.
In the words of one veteran employee, that makes Amtrak “the
most profitable money-losing national passenger rail system in
the world.”