How are these numbers calculated?

Big Games

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

Week of 4/14100.0*Level 9100.0*Average seed
North Leigh 5 Paulton Rovers 3 -6.7
+0.6
North Leigh 1 Cirencester Town 2 +3.3
-0.4
Bideford 2 North Leigh 0 +2.4
-0.2
Cinderford Town 9 Slimbridge 0 -1.7
+0.1
Yate Town 1 Slimbridge 1 +0.8
-0.0
Bristol Manor F 5 Barnstaple Town 1 -0.7
+0.0
Bishop's Cleeve 3 Paulton Rovers 2 +0.1
Shortwood United 1 Larkhall Athletic 0 -0.1
Bideford 2 Paulton Rovers 1 +0.1
Cinderford Town 4 Mangotsfield Un 3 +0.0
Week of 4/21100.0*Level 9100.0*Average seed
Slimbridge 4 Bideford 3 +3.2
-0.1
Barnstaple Town 1 Shortwood United 3 -0.9
Barnstaple Town 1 North Leigh 5 No
+0.8
North Leigh 0 Didcot Town 2 +0.8
-0.4
Winchester City 2 North Leigh 0 +0.6
-0.2
Taunton Town 9 Slimbridge 0 -0.1
+0.1
Paulton Rovers 2 Yate Town 0 +0.1
-0.2
Wimborne Town 4 Paulton Rovers 1 +0.1
Mangotsfield Un 0 Evesham United 2 +0.1
Week of 4/28100.0*Level 9100.0*Average seed
Kidlington 2 Mangotsfield Un 2 -0.2
North Leigh 1 Larkhall Athletic 1 -0.2
Didcot Town 3 Paulton Rovers 0 +0.2
Shortwood United 0 Kidlington 5 +0.1
Shortwood United 0 Cirencester Town 3 +0.1
Wimborne Town 5 Slimbridge 0 +0.0
Points
Chance Will Make Playoffs