How are these numbers calculated?

Big Games

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

Thursday, 12/29100.0*Chance in playoffs100.0*Best of 3 Relegation Round100.0*Average seed
CAN 10 LAT 2 -2.6
+2.6
-0.0
USA 3 RUS 2 -0.5
+0.5
Friday, 12/30100.0*Chance in playoffs100.0*Best of 3 Relegation Round100.0*Average seed
LAT 2 SVK 4 Out
Yes
-0.3
Saturday, 12/31None
Points
Chance Will Make Playoffs