Albion realistically need ten points from the remaining nine games to avoid the drop.
Foster is confident they will, although he feels a minimum of 12 points might be needed.
"It is not that bad a run-in to be honest," he said. "We have maybe three or four big teams. The teams we will be playing around us are teams we need to beat.
"It is like Saturday, really, we need another one of those days.
"We probably need another four or five more of these, to be honest."