How are these numbers calculated?

Big Games

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

If winner is:HomeDrawAway
Friday, 11/9100.0*Chance wins title100.0*Average seed
Caruana vs Carlsen-15.8-0.3+15.3
-0.2-0.0+0.2
If winner is:HomeDrawAway
Saturday, 11/10100.0*Chance wins title100.0*Average seed
Carlsen vs Caruana+15.8+0.3-15.3
+0.2+0.0-0.2

What If

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

100100
If finish:ChanceChance will finish season at seed
TWW-D-Lwins title12Count
6.5-12Yes10036,568,895,320*
63-6-350.0%50505,474,935,382
4-4-450.050504,288,796,999
2-8-250.050502,105,894,205
5-2-550.05050860,071,937
1-10-150.05050224,017,410
6-0-650.0505019,970,728
0-12-050.050504,059,781
0-5.5No10036,569,094,534*
Total:50.0%505086,115,736,296

* Row combines multiple less frequent records.

Games Above .500
Chance Will Win Championship