How are these numbers calculated?

Big Games

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

Week of 11/18100.0*Chance in playoffs100.0*Average seed
NIEW 103.8 BAXT 68.9 +23.2
+0.9
DAVE 104.2 DEEG 147.2 -2.8
-0.1
DONF 106.1 HARD 103.5 -2.6
-0.1
TEST 120.9 EDWA 152.2 -2.3
-0.1
CHIM 108.7 NICK 141.4 +1.4
+0.1
MOSS 101.4 PHXS 101.7 -0.3
Week of 11/25100.0*Chance in playoffs100.0*Average seed
NIEW 103 EDWA 112.8 -31.2
-0.9
CHIM 135.2 DEEG 168.8 -5.9
-0.1
DONF 86.1 BAXT 116 +3.9
+0.1
DAVE 120.9 PHXS 155.7 +1.3
+0.1
TEST 136 NICK 145.1 -0.1
Week of 12/2100.0*Chance in playoffs100.0*Average seed
NICK 113.9 NIEW 106.8 -20.3
-0.9
HARD 92.4 DAVE 89.1 +3.5
+0.1
If winner is:HomeTieAway
BAXT vs MOSS-0.5+0.5+0.5
EDWA vs DONF+0.4+0.4-0.4

What If

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

100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-L-Tplayoffs123456789101112Count
70-0-0Out30511932,773,008
Total:Out30511932,773,008
Games Above .500
Chance Will Make Playoffs