How are these numbers calculated? (show)

Points Above 12th  (Full Screen)
Chance Will Win Championship  (Full Screen)
RaceFinishStartLapsLeadPointsBonusPenaltyTotalPurse
Daytona 500422152160160$632,013
Auto Club 500192124910610694,000
Shelby 42723728591705175244,575
Kobalt Tools 50062133015015096,350
Food City 500133150312412492,975
Goody’s Fast Relief 5005350015515594,875
Samsung 50022193339797109,575
Subway Fresh Fit 5002624311858578,525
Aaron’s 4993958464688,875
Crown Royal Presents Richmond 40018124007109511482,100
Southern 5003717221525280,375
Coca-Cola 6003624226555595,625
Dover 4001125400130130103,225
Pocono 500121620012712785,075
LifeLock 40010920013413496,250
Toyota/Save Mart 350826113142142103,900
Lenox Industrial Tools 301201627310310389,175
Coke Zero 4002915159767697,975
LifeLock.com 40095267138138113,000
Allstate 400 at the Brickyard1810160109109167,025
Pennsylvania 500316200231655170136,425
NASCAR Sprint Cup Series at the Glen9389013813887,175
Michigan 4008232001142514796,625
Sharpie 500216500100100106,800
Pep Boys Auto 5002920323767693,125
Chevy Rock and Roll 400618400150150111,275
Sylvania 300101730013413496,700
Dover 400 Number 215840011811896,050
Kansas 400218266100100100,200
Pepsi 50098250138138113,950
Bank of America 500611334150150113,875
Tums Fast Relief 500191950110610683,150
Amp Energy 500121519112712793,650
Dickies 500710333146146153,225
Checker O'Reilly Auto Parts 500713312146146107,450
Ford 400111026711305135
10,157414,334+25-0=4,359$4,235,163