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 +4.1
+0.1
SPA 15 RS 5 +3.6
+0.1
SPA 12 HA 15 +0.5
If winner is:HomeTieAway
Monday, 4/3100.0*Chance in playoffs100.0*Average seed
RS vs OS-15.6-0.6+15.6
-0.4-0.0+0.4
HA vs OS-8.4+1.9+8.3
-0.2+0.0+0.2

What If

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

100100100100100100
If finish:Chance inChance will finish regular season at seed
TPW-L-Tplayoffs123456Count
125-0-0In4357376,417
114-0-1In118997,745
104-1-095.2%9551,852,668
3-0-2In10010,374
93-1-194.8955388,975
2-0-3In100555
83-2-067.167333,700,024
2-1-275.7762430,776
1-0-481.8821822
72-2-145.345495583,393
1-1-351.4514541,105
0-0-5In1001
62-3-014.71559273,700,219
1-2-213.513612530,863
0-1-4Out633816
51-3-11.213366389,190
0-2-31.113267568
41-4-0Out14861,850,635
0-3-2Out29810,042
2-3Out100473,552*
Total:44.0%1241312513,497,140

* Row combines multiple less frequent records.

Games Above .500
Chance Will Make Playoffs