How are these numbers calculated?

Big Games

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

Sunday, 5/26100.0*Chance in playoffs100.0*Average seed
Redstone Reapers 3 New Gettysburg 2 -0.3
-0.6
Aiur Storms 3 Mar Sara Threat 8 +0.2
Shakuras Inquis 3 Korhal War Pigs 4 +0.1
+0.1
Char Meleons 11 Tarsonis City T 0 +0.0
+0.1
Sunday, 6/2100.0*Chance in playoffs100.0*Average seed
New Gettysburg 3 Korhal War Pigs 7 -0.4
Char Meleons 4 New Gettysburg 3 (ot)-0.3
Mar Sara Threat 8 Tarsonis City T 3 +0.2
Shakuras Inquis 2 Aiur Storms 6 +0.2
Tarsonis City T 3 Redstone Reapers 8 +0.1
Points
Chance Will Make Playoffs