How are these numbers calculated?

Big Games

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

Week of 4/14100.0*Chance wins title100.0*Promoted100.0*Average seed
Ayr Utd 1 Stranraer 2 +8.0
+6.0
+0.1
Week of 4/22100.0*Chance wins title100.0*Promoted100.0*Average seed
Alloa Athletic 2 Ayr Utd 1 +36.9
+27.6
+0.4
Week of 4/28100.0*Chance wins title100.0*Promoted100.0*Average seed
Raith Rovers 0 Alloa Athletic 0 -22.4
-16.8
-0.2
Ayr Utd 2 Albion Rovers 0 -14.2
-10.7
-0.1
Points
Chance Will Win Championship