generally looking at the high eighties
2010
- Newcastle 102
- West Brom 91
- Forest 79
2011
- QPR 88
- Norwich 84
- Swansea 80
2012
- Reading 89
- Southampton 88
- West Ham 86
2013
- Cardiff 87
- Hull 79
- Watford 77
2014
- Leicester 102
- Burnley 93
- Derby 85
2015
- Bournemouth 90
- Watford 89
- Norwich 86
2016
- Burnley 93
- Middlesboro 89
- Brighton 89
2017
- Newcastle 94
- Brighton 93
- Reading 85
2018
- Wolves 99
- Cardiff 90
- Fulham 88
so average points to win the league since 2010 is 93.7
average for second place is 88.4
average for third place is 83.8
so while it says that since 2010 the team in second had achieved 88 points on average you only need 84 points on average to finish above third, obviously thats not an exact science and you can get freak seasons such as Brighton in 2016 where they got 89 points and had to settle for the playoffs and still didn't go up yet in three of those nine seasons 89 points would win you the league
but looking at the table now Sheff Utd in third on 64 points can get to 96, so I'd think you're looking at least needing 86 points for the top two
incidentally the team finishing 4th bottom the last nine seasons have averaged 48.1 points, Ipswich can get 57 if they win all 12 of their remaining games, they've won 3 out of 34 so far this season