How are these numbers calculated?

Big Games

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

If winner is:HomeHome OTHome SOAway SOAway OTAway
Week of 2/15100.0*Chance wins title
BRA vs DUNYesYesYes+0.0+0.0-0.1
FIF vs HUL-0.0-0.0-0.0YesYesYes
If winner is:HomeHome OTHome SOAway SOAway OTAway
Week of 2/22100.0*Chance wins title
DUN vs BRA-0.0Yes+0.0YesYesYes
FIF vs EDI-0.0-0.0-0.0YesYesYes

What If

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

100100100100100
If finish:ChanceChance will finish season at seed
TPWL-OTwins title12345Count
43-55Yes100115,687,860*
4206-196.8%973282
4107-082.6831757,708
Total:100.0%1000115,745,850

* Row combines multiple less frequent records.

Points
Chance Will Win Championship