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
USA 3 RUS 2 +1.2
-1.2
+0.0
CAN 10 LAT 2 +0.8
-0.8
+0.0
Friday, 12/30100.0*Chance in playoffs100.0*Best of 3 Relegation Round100.0*Average seed
LAT 2 SVK 4 In
No
+0.4
Saturday, 12/31100.0*Chance in playoffs100.0*Best of 3 Relegation Round100.0*Average seed
SVK 0 RUS 2 -0.5
Points
Chance Will Make Playoffs