How are these numbers calculated?

Big Games

How we did last week and who we should root for this week.   Explain

Week of 4/22100.0*Premier League100.0*Average seed
Brighton 2 Yeovil 0 +3.3
+0.7
Reading 2 Middlesbrough 0 -2.2
-0.2
Week of 4/26100.0*Premier League100.0*Average seed
Doncaster 1 Reading 3 -3.8
-0.2
Birmingham 0 Wigan 1 -1.6
-0.2
Bournemouth 4 Nottm Forest 1 +0.7
+0.1
Wigan 0 Blackpool 2 +0.7
+0.1
Charlton 1 Blackburn 3 -0.5
-0.1
Burnley 1 Ipswich 0 +0.5
+0.1
Derby 4 Watford 2 +0.1
+0.0
Week of 5/3100.0*Premier League100.0*Average seed
Nottm Forest 1 Brighton 2 +8.2
+0.5
Reading 2 Burnley 2 +0.6
+0.0
Blackburn 4 Wigan 3 -0.3
-0.3
Points
Chance Will Win Championship