How are these numbers calculated? (show)

Points Above 12th  (Full Screen)
Chance Will Win Championship  (Full Screen)
RaceFinishStartLapsLeadPointsBonusPenaltyTotalPurse
Daytona 50081202181425147$374,764
Auto Club 50025402488888114,314
UAW-DaimlerChrysler 4002121265100100119,189
Kobalt Tools 5003027323737395,289
Food City 5004135484040106,864
Goody’s Cool Orange 5003916469464693,514
Samsung 5001930332106106137,639
Subway Fresh Fit 5003530308585889,764
Aaron’s 49942192160160182,689
Crown Royal Presents The Jim Stewart 4004241275373790,669
Dodge Avenger 50030383617373100,289
Coca-Cola 60035192655858111,414
Autism Speaks 400 presented by Visa29363957676106,214
Pocono 5003416106616189,489
Citizens Bank 4001720199112112105,039
Toyota/Save Mart 35025351108888102,539
Lenox Industrial Tools 30028272997979101,264
Pepsi 4001132160130130133,514
USG Sheetrock 4001642267115115124,264
Allstate 400 at the Brickyard1738160112112183,114
Pennsylvania 5003933192464688,689
AMD at The Glen333090646490,339
3M Performance 40028242027979101,264
Sharpie 50030274977373114,789
California 50025142498888118,189
Chevy Rock and Roll 4002241400979797,464
Sylvania 3003935295464695,964
Dover 4002437395919198,214
Banquet 40034222066161106,789
UAW-Ford 50027271678282102,239
Bank of America 5002521335888894,989
Subway 5002540505888893,514
Georgia 5004213643737106,924
Dickies 50028343307979127,039
Checker Auto Parts 5002842311797994,314
Ford 400 - Homestead-Miami3212263676790,414
9,485182,919+5-0=2,924$4,182,969