How are these numbers calculated?

Big Games

How we did last week and who we should root for this week.   Explain

Week of 2/23100.0*Chance in playoffs100.0*Average seed
CHI 64 HFD 60 -11.0
-0.4
OSA 59 OTW 56 +3.9
+0.1
MIN 55 MTL 51 +2.5
+0.1
BRM 47 DET 32 -1.6
-0.1
ANA 42 ADK 61 -0.3
-0.1
Week of 3/2100.0*Chance in playoffs100.0*Average seed
HFD 96 KEL 63 +26.8
+1.0
MTL 71 DET 36 -2.2
-0.1
OTW 59 BRM 66 +1.2
-0.1
ADK 57 VIC 36 -0.3
-0.1
If winner is:HomeTieAway
Week of 3/9100.0*Chance in playoffs100.0*Average seed
HFD vs OTW+51.7-27.1Out
+1.3+0.3-1.4
BRM vs VIC-2.1+8.9+9.4
-0.1+0.1+0.5
EDM vs MTL+0.7-0.3-0.3
+0.3-0.1-0.1
WPG vs ADK+0.2+0.2-0.2

What If

Chances based on how well the HFD finish out the regular season.   Explain

100100100100100100100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TPW-OTL-OTTplayoffs123456789101112131415161718Count
241-00-0097.3%2770321,983,615
230-00-0118.5198104,880,127
220-01-00Out4474921,989,222
Total:45.6%123411212248,852,964
Points
Chance Will Make Playoffs