How are these numbers calculated? (show)

Points Above 12th  (Full Screen)
Chance Will Win Championship  (Full Screen)
RaceFinishStartLapsLeadPointsBonusPenaltyTotalPurse
Daytona 50025171528888$273,513
Auto Club 5003636240555583,325
Shelby 427
Kobalt Tools 500
Food City 500
Goody’s Fast Relief 5003040497737372,275
Samsung 500
Subway Fresh Fit 5003637307555566,950
Aaron’s 49941216404080,325
Crown Royal Presents Richmond 400423954373767,050
Southern 5003937101464672,025
Coca-Cola 600384322534955487,285
Dover 400
Pocono 500
LifeLock 400
Toyota/Save Mart 350
Lenox Industrial Tools 301
Coke Zero 400
LifeLock.com 400
Allstate 400 at the Brickyard
Pennsylvania 500
NASCAR Sprint Cup Series at the Glen
Michigan 400
Sharpie 500
Pep Boys Auto 500
Chevy Rock and Roll 400
Sylvania 300
Dover 400 Number 2
Kansas 400
Pepsi 500
Bank of America 500
Tums Fast Relief 500
Amp Energy 500
Dickies 500
Checker O'Reilly Auto Parts 500
Ford 400
1,5823443+5-0=448$802,748