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*Chance wins title100.0*Promoted100.0*Average seed
Darlington 0 Notts County 5 No
Burton 0 Bournemouth 2 Yes
Barnet 0 Rotherham 1 -0.4
Lincoln City 1 Bury 0 +0.0
Week of 5/8100.0*Chance wins title100.0*Promoted100.0*Average seed
Barnet 1 Rochdale 0 +0.4
Chesterfield 2 Bournemouth 1 -0.3
Points
Chance Will Win Championship