How are these numbers calculated?

Big Games

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

Week of 7/1100.0*Chance in playoffs100.0*Average seed
Dayton 2 Erie 1 -22.6
-0.6
Fort Pitt 2 Dayton 0 +6.3
+0.1
Cleveland 2 Syracuse 0 -3.7
-0.1
Cleveland 2 Lancers 0 -1.2
-0.0
Week of 7/9100.0*Chance in playoffs100.0*Average seed
Erie 1 Cleveland 0 +28.2
+0.8
Buffalo 3 Cleveland 1 -3.6
+0.1
Week of 7/15100.0*Chance in playoffs100.0*Average seed
Lancers 3 Erie 1 -23.4
-0.5
If winner is:HomeDrawAway
Erie vs SyracuseInIn-62.9
+0.7+0.7-1.3

What If

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

100100100100100100100
If finish:Chance inChance will finish regular season at seed
TPW-D-Lplayoffs1234567Count
21-23In10065,339,556,961*
200-0-10.0%010038,569,341,509
Total:62.9%63037103,908,898,470

* Row combines multiple less frequent records.

Points
Chance Will Make Playoffs