How are these numbers calculated?

Big Games

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

Week of 4/24100.0*Relegated100.0*Average seed
Accrington 1 Barnet 0 -4.7
+0.0
Darlington 0 Grimsby 2 -2.7
Barnet 0 Rotherham 1 -1.0
Lincoln City 1 Bury 0 +0.7
Week of 5/8100.0*Relegated100.0*Average seed
Barnet 1 Rochdale 0 Yes
-0.2
Burton 3 Grimsby 0 Yes
-0.2
Points
Chance Will Win Championship