How are these numbers calculated?

Big Games

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

Saturday, 4/1100.0*Chance in playoffs100.0*Average seed
RS 10 HA 20 In
+0.2
SPA 12 HA 15 In
+0.3
BF 12 SPA 10 +0.1
SPA 15 RS 5 +0.0
-0.1
If winner is:HomeTieAway
Monday, 4/3100.0*Chance in playoffs100.0*Average seed
HA vs OS+0.1+0.1-0.1

What If

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

100100100100100100
If finish:Chance inChance will finish regular season at seed
TPW-L-Tplayoffs123456Count
19-20In1001,810,528*
182-1-0In9734,679,082
1-0-2In10012,841
171-1-1In964492,033
0-0-3In100208
161-2-0In70304,679,116
0-1-2In772312,895
150-2-1In6238245,638
140-3-0In17831,564,799
Total:In782213,497,140

* Row combines multiple less frequent records.

Games Above .500
Chance Will Make Playoffs