How are these numbers calculated?

Big Games

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

Week of 2/25100.0*Chance wins title100.0*Promoted100.0*Relegated100.0*Average seed
Dumbarton 1 Clyde 0 -0.1
Week of 2/29100.0*Chance wins title100.0*Promoted100.0*Relegated100.0*Average seed
Clyde 3 Falkirk 2 +0.4
+0.3
Forfar Athletic 0 East Fife 1 +0.3
+2.3
No
+0.2
Dumbarton 1 Raith Rovers 0 +0.2
+0.1
Montrose 1 Airdrieonians 0 -1.2
Week of 3/7100.0*Chance wins title100.0*Promoted100.0*Relegated100.0*Average seed
Airdrieonians 1 East Fife 0 -5.4
-0.6
Stranraer 0 Montrose 1 No
-0.2
Montrose 4 Stranraer 1 -3.8
-0.2
Points
Chance Will Win Championship