How are these numbers calculated?

Big Games

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

Week of 2/21100.0*Promoted100.0*Relegated100.0*Average seed
Ayr Utd 1 Morton 2 -1.6
-0.4
Queen of the South 0 Dundee 1 -0.4
-0.1
Dundee Utd 2 Inverness CT 1 +0.1
+0.1
Dunfermline 1 Inverness CT 2 +0.1
-0.1
Morton 4 Alloa Athletic 4 +0.1
Week of 2/29100.0*Promoted100.0*Relegated100.0*Average seed
Alloa Athletic 0 Ayr Utd 2 +2.7
No
+0.6
Arbroath 0 Dunfermline 0 +1.3
+0.1
Dunfermline 2 Dundee Utd 0 -0.8
-0.1
Queen of the South 0 Morton 4 -0.6
-0.1
Inverness CT 3 Morton 2 +0.4
-0.1
Dundee 0 Alloa Athletic 0 +0.1
+0.1
Ayr Utd 0 Dundee Utd 0 -0.1
-0.0
Week of 3/7100.0*Promoted100.0*Relegated100.0*Average seed
Ayr Utd 0 Dundee 0 +0.3
-0.1
Dunfermline 1 Queen of the South 1 +0.3
+0.0
Dundee 2 Ayr Utd 0 -0.9
Inverness CT 3 Queen of the South 1 -0.2
Alloa Athletic 2 Inverness CT 0 +0.2
Points
Chance Will Win Championship