How are these numbers calculated?

Big Games

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

Friday100.0*Chance in playoffs100.0*Average seed
Potomac 5 Salem 4 +1.1
+0.2
Potomac 4 Salem 2 +1.1
+0.2
Lynchburg 3 Frederick 5 +0.8
Lynchburg 0 Frederick 1 +0.8
Winston-Salem 11 Wilmington 3 +0.3
+0.1
Winston-Salem 5 Wilmington 3 +0.3
+0.1
If winner is:HomeAway
Saturday100.0*Chance in playoffs100.0*Average seed
Potomac vs Salem+4.5-4.5
+0.4-0.4
Potomac vs Salem+4.5-4.5
+0.4-0.4
Lynchburg vs Frederick-3.6+3.6
-0.1+0.1
Lynchburg vs Frederick-3.6+3.6
-0.1+0.1
Winston-Salem vs Wilmington+0.9-0.9
+0.1-0.1

What If

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

100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs12345678Count
3810-094.6%8874132,033
379-182.50827100241,903
368-261.0614324001,084,062
357-334.23403328402,884,492
346-412.8130114129605,041,194
335-53.23116473316,046,861
324-60.30022562115,039,052
313-7Out0660342,887,781
302-8Out0138611,083,454
291-9Out01882242,081
280-10Out69432,237
Total:11.1%011081624311024,615,150
Games Above .500  (Full Screen)
Chance Will Make Playoffs  (Full Screen)