How are these numbers calculated? (show)

Points Behind 1st  (Full Screen)
Chance Will Win Championship  (Full Screen)
RaceFinishStartLapsLeadPointsBonusPenaltyTotalPurse
Chevy Silverado 2501115100130130$19,735
San Bernardino County 200292497767611,035
American Commercial Lines 200222312897979,410
Kroger 25036277755557,405
O'Reilly Auto Parts 2502924106767610,560
NC Lottery 20016913811511511,560
Ohio 25014425012112110,810
AAA Insurance 2002231197979711,610
Sam’s Town 400
Cool City Customs 200
Milwaukee 200
O'Reilly 200
Built Ford Tough 225
Power Stroke Diesel 200
Toyota Tundra 200
O'Reilly 200
Gateway 200202416010310311,010
New Hampshire 200
Quik-Liner Las Vegas 350
Mountain Dew 250
Kroger 200
Georgia 200
Silverado 350K
Casino Arizona 150
Ford 200
1,2530870+0-0=870$103,135