How are these numbers calculated?

Big Games

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

Thursday, 3/23100.0*Chance in playoffs100.0*Average seed
RS 4 SPA 19 +4.3
+0.1
If winner is:HomeTieAway
Monday, 4/3100.0*Chance in playoffs100.0*Average seed
RS vs OS-21.8-5.0+22.1
-0.4-0.0+0.4
HA vs OS-1.6+10.1+18.1
-0.0+0.2+0.4
RS vs HA-12.3-5.2+1.0
-0.2-0.1+0.0

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
125-0-0In074648109,070
114-0-1In1376256,900
104-1-0100.0%0128801,776,024
3-0-2100.001189013,131
93-1-199.807920780,185
2-0-3In6941,203
83-2-097.501972011,282,549
2-1-297.619720103,949
1-0-498.198252
72-2-190.4090902,778,552
1-1-388.30881205,501
0-0-5In1003
62-3-066.906731223,954,216
1-2-262.262353209,559
0-1-443.0434611100
51-3-123.82461153,446,960
0-2-314.41464214,944
41-4-04.54484820,804,447
0-3-2Out3862118,647
30-4-1Out10901,393,642
20-5-0Out1006,455,010
Total:46.8%00146282673,294,644
Games Above .500
Chance Will Make Playoffs