How are these numbers calculated?

Big Games

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

Wednesday, 9/2100.0*Chance in playoffs100.0*Group Stage100.0*Average seed
Pacific 0 Ottawa 1 +1.9
+1.9
+0.2
Valour 0 HFX 2 +1.6
+1.6
+0.1
Saturday, 9/5100.0*Chance in playoffs100.0*Group Stage100.0*Average seed
Forge 2 Valour 2 -0.3
Sunday, 9/6100.0*Chance in playoffs100.0*Group Stage100.0*Average seed
HFX 2 Ottawa 0 -0.6
Points
Chance Will Make Playoffs