How are these numbers calculated?

Big Games

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

Week of 2/25None
Week of 2/29100.0*Chance wins title100.0*Promoted100.0*Average seed
Clyde 3 Falkirk 2 -12.9
-9.8
-0.2
Dumbarton 1 Raith Rovers 0 +7.8
+5.8
+0.1
Montrose 1 Airdrieonians 0 +0.8
+0.6
Forfar Athletic 0 East Fife 1 -0.2
-0.2
Week of 3/7100.0*Chance wins title100.0*Promoted100.0*Average seed
Raith Rovers 2 Forfar Athletic 1 No
-23.0
-0.3
Falkirk 3 Peterhead 0 +11.5
+8.7
+0.1
Points
Chance Will Win Championship