How are these numbers calculated?

Big Games

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

Tuesday, 5/8100.0*Chance in playoffs100.0*Average seed
Tsunamis 0 LAHC 1 +8.5
Squares 1 Princes 2 (ot)-8.0
-0.4
Trails 2 Snipers 1 (ot)+0.0
Islanders 1 Dynasty 0 (ot)-0.0
Wednesday, 5/9100.0*Chance in playoffs100.0*Average seed
Princes 0 Tsunamis 2 -13.0
-0.0
LAHC 4 Squares 1 -12.2
-0.3
Dynasty 2 Trails 0 -0.0
Thursday, 5/10100.0*Chance in playoffs100.0*Average seed
Squares 4 Tsunamis 1 In
+0.5
Points
Chance Will Make Playoffs