How are these numbers calculated?

Big Games

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

Week of 11/19100.0*Chance in playoffs100.0*Average seed
GRAL 102.1 DTD 138.8 +6.8
+0.5
TOTS 105.4 MAC 108.9 +5.7
-0.1
RUN! 104 TDFW 110.8 -0.9
If winner is:HomeAway
Week of 11/26100.0*Chance in playoffs100.0*Average seed
DTD vs TOTS+25.5Out
+0.6-0.6
GRAL vs RUN!-7.1+2.5
-0.3+0.1
TDFW vs MAC+0.8-1.7
+0.1-0.2

What If

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

100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs123456Count
72-089.6%9010011,354,936
61-113.1137115123,224,296
50-2Out20493011,700,952
Total:28.5%294320846,280,184
Games Above .500
Chance Will Make Playoffs