How are these numbers calculated? (show)

Points Above 12th  (Full Screen)
Chance Will Win Championship  (Full Screen)
RaceFinishStartLapsLeadPointsBonusPenaltyTotalPurse
Daytona 50038191384949$336,729
Auto Club 50037272215252113,506
Shelby 42735362695858115,006
Kobalt Tools 50028333257979105,006
Food City 50025425018888119,681
Goody’s Fast Relief 50025384988888105,706
Samsung 50013533411245129156,079
Subway Fresh Fit 5002373119494102,581
Aaron’s 499132418821245129129,431
Crown Royal Presents Richmond 40030333987373102,531
Southern 5001540367118118118,904
Coca-Cola 60029312267676121,956
Dover 40032363636767109,506
Pocono 5002933200767699,606
LifeLock 40034381976161104,531
Toyota/Save Mart 3502130113100100112,429
Lenox Industrial Tools 30130332677373106,906
Coke Zero 40023331609494125,656
LifeLock.com 40035272265858113,306
Allstate 400 at the Brickyard29281587676177,781
Pennsylvania 50026332008585100,656
NASCAR Sprint Cup Series at the Glen191490106106100,581
Michigan 4002635200485590108,606
Sharpie 50024394989191125,456
Pep Boys Auto 5001541325118118129,881
Chevy Rock and Roll 40028423997979102,906
Sylvania 30034402876161103,056
Dover 400 Number 21910400106106106,456
Kansas 40030202657373117,831
Pepsi 50027412478282122,906
Bank of America 50027313328282100,806
Tums Fast Relief 50023305009494105,431
Amp Energy 500423243737103,031
Dickies 50029393317676132,506
Checker O'Reilly Auto Parts 50029413087676101,031
Ford 40026362678585
10,11372,964+15-0=2,979$4,237,977