How are these numbers calculated?

Big Games

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

Week of 4/18100.0*Chance wins title100.0*Promoted100.0*Average seed
Peterhead 1 Forfar Athletic 0 +13.3
+10.0
+0.2
Stranraer 3 Stenhousemuir 2 +10.0
+7.5
+0.3
Stirling Albion 0 Morton 2 -1.3
-1.0
-0.1
Week of 4/25100.0*Chance wins title100.0*Promoted100.0*Average seed
Stranraer 0 Morton 2 -35.8
-26.9
-0.8
Dunfermline 1 Forfar Athletic 3 -13.3
-10.0
-0.2
Week of 5/2100.0*Chance wins title100.0*Promoted100.0*Average seed
Forfar Athletic 1 Ayr Utd 3 +8.2
+6.1
+0.3
Brechin 1 Stranraer 3 +7.8
+5.9
+0.4
Morton 3 Peterhead 1 No
-3.8
-0.1
Points
Chance Will Win Championship