How are these numbers calculated?

Big Games

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

Friday, 5/15100.0*Chance in playoffs100.0*Average seed
GB 21 CHI 28 +1.6
+0.2
DET 14 TB 19 +1.4
+0.1
NO 14 IND 28 +0.4
+0.1
SF 35 ATL 42 -0.4
CAR 22 SEA 34 +0.3
WAS 17 PHI 14 -0.2
Saturday, 5/16100.0*Chance in playoffs100.0*Average seed
CHI 7 KC 42 -0.1
SEA 47 ARI 14 -0.0
If winner is:HomeTieAway
Sunday, 5/17100.0*Chance in playoffs100.0*Average seed
MIN vs CHI-0.4+0.2+0.2
CAR vs NO-0.1+0.2+0.2

What If

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

100100100100100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-L-Tplayoffs12345678910111213141516Count
10.5-11In1002,090,819*
100-1-0In3862853,773
Total:In82182,944,592

* Row combines multiple less frequent records.

Games Above .500
Chance Will Make Playoffs