How are these numbers calculated?

Big Games

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

Week of 4/16100.0*Chance wins title100.0*Promoted
Clyde 0 East Fife 0 +0.9
+0.7
Annan Athletic 1 East Stirling 3 +0.7
+0.5
Elgin City 1 Queens Park 1 +0.5
+0.4
Week of 4/23None
Week of 4/30None
Points
Chance Will Win Championship