11, derby county, season 07-07
Derby County had the lowest Premiership total in the history of the league in the 2007-08 season. They had just 11 points and were relegated.
Rangers 2 points (2009/10)
Manchester City 2012. 2 Points.
Derby County 89 in 2007-08 season they also were relegated with the lowest number of points 11
Roughly 20 points
20
Chelsea were relegated from the Football League First Division in the 1987-88 season, finishing in eighteenth place, and were promoted from the Second Division in the 1988-89 season, finishing 17 points clear at the top of the Second Division table.
They were relegated last season, also nine points were deducted for going into administration. As of August 12th 2013, Portsmouth FC will play their games in League 2 ( the 4th tier of English football ).
Manchester City, 3 pts, 2012/13 Season
As there are a variety of ways points are earned during league play, there are several ways to come up with 20 points, so there isn't a definitive standard for a 20 point system.
Relegation is when a team loses its position in a particular league division and is moved to a lower one. For example a team that does badly in the season will end up being relegated to an easier league, because they will have a low number of points at the end of the season. Depending on the league structure, several teams will get relegated each year, and other teams that have finished at the top of their division will be promoted. So, in a typical example, the three bottom teams in Division 1 might be relegated to Division 2 and the three top teams in Division 2 will be promoted to Division 1. So each division will retain the same amount of teams. There may be lots of divisions, so teams could be relegated between Division 2 and Division 3 and so on. Sometimes teams may be automatically promoted if they finish top, and teams that are close to the top may have a play-off to get other places for promotion. There are different systems.