How are these numbers calculated? (show)

Points Above 12th  (Full Screen)
Chance Will Win Championship  (Full Screen)
RaceFinishStartLapsLeadPointsBonusPenaltyTotalPurse
Daytona 500727152146146$396,238
Auto Club 5001542250118118106,250
Shelby 4272715283828298,300
Kobalt Tools 5002524326888883,925
Food City 500322149726757291,975
Goody’s Fast Relief 500132150012412487,450
Samsung 50024343329191114,475
Subway Fresh Fit 500373230715255773,825
Aaron’s 49921311881100510598,600
Crown Royal Presents Richmond 4002430400919180,675
Southern 500403673434379,875
Coca-Cola 600303922617357899,925
Dover 4003529250585886,525
Pocono 500173220011211280,750
LifeLock 4003036198737386,050
Toyota/Save Mart 350
Lenox Industrial Tools 3012429273919186,250
Coke Zero 4003729124525294,250
LifeLock.com 4002037266103103101,750
Allstate 400 at the Brickyard35231395858150,525
Pennsylvania 5003131198707076,900
NASCAR Sprint Cup Series at the Glen
Michigan 400273020018258785,875
Sharpie 500313649097057599,415
Pep Boys Auto 500321932316757292,750
Chevy Rock and Roll 400324039816757276,975
Sylvania 3002721298828285,225
Dover 400 Number 2363884555577,300
Kansas 4003829141494990,250
Pepsi 5001734250112112105,575
Bank of America 500323333136757274,225
Tums Fast Relief 5003036497737380,750
Amp Energy 50073319121465151110,675
Dickies 50023403319494112,950
Checker O'Reilly Auto Parts 5003611251555574,675
Ford 4003039266173578
9,233232,784+55-0=2,839$3,341,153