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
OSA 59 OTW 56 -13.8
-0.5
CHI 64 HFD 60 +6.7
+0.1
MIN 55 MTL 51 +4.2
+0.2
BRM 47 DET 32 -2.1
-0.1
ANA 42 ADK 61 -0.1
Week of 3/2100.0*Chance in playoffs100.0*Average seed
OTW 59 BRM 66 -22.3
-0.6
HFD 96 KEL 63 -7.0
-0.1
MTL 71 DET 36 -4.7
-0.2
ADK 57 VIC 36 -0.6
-0.1
If winner is:HomeTieAway
Week of 3/9100.0*Chance in playoffs100.0*Average seed
HFD vs OTWOutOut+54.1
-1.1-0.6+1.3
BRM vs VIC-0.8+0.7+0.7
-0.3-0.1+0.3
EDM vs MTL+0.3-0.3-0.3
+0.2-0.2-0.2
WPG vs ADK+0.2+0.2-0.2

What If

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

100100100100100100100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TPW-OTL-OTTplayoffs123456789101112131415161718Count
241-00-0098.5%415827,231,478
230-00-01Out544601,606,264
220-01-00Out2451267,232,178
Total:44.3%182617271216,069,920
Points
Chance Will Make Playoffs