How are these numbers calculated? (show)

Points Behind 1st  (Full Screen)
Chance Will Win Championship  (Full Screen)
RaceFinishStartLapsLeadPointsBonusPenaltyTotalPurse
Chevy Silverado 250414100160160$30,310
San Bernardino County 20013810012412414,360
American Commercial Lines 200212112810010010,910
Kroger 2506925315015013,385
O'Reilly Auto Parts 250271411418258710,635
NC Lottery 200171913711211211,110
Ohio 250232501701701018037,525
AAA Insurance 20061520015015016,985
Sam’s Town 400277147828210,835
Cool City Customs 200262499858510,585
Milwaukee 200232219794948,435
O'Reilly 20051720415515515,310
Built Ford Tough 22551715015515523,360
Power Stroke Diesel 200162320011511511,835
Toyota Tundra 20091715013813810,485
O'Reilly 200292014176767,960
Gateway 200282113279799,310
New Hampshire 2007142003146515114,610
Quik-Liner Las Vegas 350221514097978,535
Mountain Dew 25019269410610616,110
Kroger 200332417464646,310
Georgia 200141413012112111,560
Silverado 350K122414712712711,985
Casino Arizona 150132415012412411,335
Ford 20022301369797
3,8731742,909+20-0=2,929$333,780