How are these numbers calculated?

Big Games

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

Saturday100.0*Average seed
Cardinals 10 Twins 2 +0.3
Padres 4 Tigers 5 +0.1
Blue Jays 7 Reds 6 -0.1
If winner is:HomeAway
Sunday100.0*Average seed
Rockies vs Tigers-0.7+0.1

What If

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

100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs1234567Count
332-0In10025,793,118,264
321-1In10011,233,174,394
310-2In7624783,975,122
Total:In6831037,810,267,780
Games Above .500
Chance Will Make Playoffs