How are these numbers calculated? (show)

Points Above 12th  (Full Screen)
Chance Will Win Championship  (Full Screen)
RaceFinishStartLapsLeadPointsBonusPenaltyTotalPurse
Daytona 5001013152134134$368,713
Auto Club 5005425021555160133,900
Shelby 427232284194599102,525
Kobalt Tools 5001233023418510195164,175
Food City 5001132503130130109,075
Goody’s Fast Relief 50018250010910991,975
Samsung 50082833411425147151,000
Subway Fresh Fit 50033312631655170145,375
Aaron’s 499628188131505155130,750
Crown Royal Presents Richmond 40012174008127513293,475
Southern 500168367115115100,350
Coca-Cola 60034172266161106,900
Dover 400519400155155136,250
Pocono 50037418225255783,275
LifeLock 40085200142142101,150
Toyota/Save Mart 350152711311185123100,000
Lenox Industrial Tools 30134273281655170146,675
Coke Zero 4005416011555160143,575
LifeLock.com 4001722267112112110,100
Allstate 400 at the Brickyard27401598282164,375
Pennsylvania 5009420014138514396,300
NASCAR Sprint Cup Series at the Glen729023146515198,525
Michigan 400366146555591,675
Sharpie 500713500146146126,975
Pep Boys Auto 5003862444949101,725
Chevy Rock and Roll 400213400170170170,825
Sylvania 30063300331505155114,750
Dover 400 Number 2516400991555160122,750
Kansas 400113926721305135115,325
Pepsi 50082425031425147121,925
Bank of America 50010153342134513999,600
Tums Fast Relief 500173750111211291,250
Amp Energy 50030618977357893,425
Dickies 50013334891855190440,575
Checker O'Reilly Auto Parts 50062312691505155112,250
Ford 400412267431605165
10,3347384,643+115-0=4,758$4,681,488