How are these numbers calculated?

Big Games

How we did yesterday and who we should root for today.   Explain

Sunday100.0*Chance in playoffs100.0*Average seed
Grenades 2 Broncos 4 -11.1
-0.7
Wildcats 5 Stingrays 4 (so)-5.4
-0.2
Rockies 4 Buzzards 1 -1.1
-0.0
Sundogs 4 Roadhogs 2 -0.1
-0.1
Leafs 2 Dragons 1 +0.0
Monday100.0*Chance in playoffs100.0*Average seed
Maniax 4 Grenades 3 -19.5
-0.4
Express 8 Rockies 3 +19.4
+0.2
TuesdayNone
Points
Chance Will Make Playoffs