"Last Resort", which debuted on September 27, has had slow ratings from the beginning, and they never boosted. It has been averaging a 2.4 rating in the 18-49 demo and 9.2 million total viewers. "666 Park Avenue" has been averaging a 2.2 rating in the 18-49 demo and 6.3 million total viewers.
ABC says that it plans on running all 13 episodes produced for each series before canceling them, but that could change in a few weeks.