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*Average seed
Valour 0 HFX Wanderers 2 -33.8
-1.4
Pacific 0 Ottawa 1 -0.1
-0.2
Saturday, 9/5100.0*Chance in playoffs100.0*Average seed
Forge 2 Valour 2 Out
-0.4
Sunday, 9/6100.0*Chance in playoffs100.0*Average seed
HFX Wanderers 2 Ottawa 0 +0.8
Pacific 2 Edmonton 1 -0.2
Points
Chance Will Make Playoffs