How are these numbers calculated?

Big Games

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

Friday, 5/26100.0*Chance in playoffs100.0*Average seed
Heat2 5 Islanders 5 -2.5
-0.1
Redwood 3 Bears 2 -1.1
-0.0
Bay 2 Jets 3 +0.9
-0.0
Heat2 9 Condors 6 +0.3
+0.1
Saturday, 5/27100.0*Chance in playoffs100.0*Average seed
Islanders 0 Flyers1 14 Out
-0.7
Jets 4 Flyers2 6 +0.9
-0.1
Redwood 9 Condors 2 +0.1
Sunday, 5/28100.0*Chance in playoffs100.0*Average seed
Heat1 3 Jets 1 +0.3
If winner is:HomeTieAway
Heat1 vs Islanders-1.0-0.8+2.5
Condors vs Flyers1-0.7-0.5+0.1
Bay vs Redwood-0.6-0.5+0.1
Flyers2 vs Heat2+0.0-0.1-0.1

What If

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

100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TPWL-OTTplayoffs12345678910Count
310-00Out22785,886,818
200-01Out97302,115,184
101-00Out7820113,193,418
Total:Out6225813121,195,420
Points
Chance Will Make Playoffs