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 +0.1
Char Meleons 11 Tarsonis City T 0 In
+0.4
Shakuras Inquis 3 Korhal War Pigs 4 In
+0.1
Aiur Storms 3 Mar Sara Threat 8 In
Sunday, 6/2100.0*Chance in playoffs100.0*Average seed
Aiur Storms 4 Char Meleons 3 -0.1
Char Meleons 4 New Gettysburg 3 (ot)+0.1
Redstone Reapers 4 Shakuras Inquis 1 +0.0
Korhal War Pigs 3 Mar Sara Threat 0 -0.0
Points
Chance Will Make Playoffs