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 -13.3
-0.4
Fort Pitt 2 Dayton 0 +9.2
+0.2
Cleveland 2 Syracuse 0 -1.1
-0.0
Cleveland 2 Lancers 0 +0.3
+0.0
Week of 7/9100.0*Chance in playoffs100.0*Average seed
Erie 1 Cleveland 0 +16.9
+0.6
Buffalo 3 Cleveland 1 -0.6
+0.0
Week of 7/15100.0*Chance in playoffs100.0*Average seed
Lancers 3 Erie 1 -3.1
-0.1
If winner is:HomeDrawAway
Erie vs SyracuseInIn-94.9
+0.1+0.1-1.9

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
21-23In100340,720,356,844*
200-0-10.0%010018,284,114,274
Total:94.9%9505359,004,471,118

* Row combines multiple less frequent records.

Points
Chance Will Make Playoffs