How are these numbers calculated? (show)

Points Above 12th  (Full Screen)
Chance Will Win Championship  (Full Screen)
RaceFinishStartLapsLeadPointsBonusPenaltyTotalPurse
Daytona 500439793434$334,874
Auto Club 50026342498585135,001
Shelby 427132028511245129151,076
Kobalt Tools 50030423247373121,551
Food City 50038234904949131,026
Goody’s Fast Relief 50032344966767119,326
Samsung 50030103307373145,524
Subway Fresh Fit 5002131311100100116,851
Aaron’s 49992218841385143153,276
Crown Royal Presents Richmond 4001913400106106119,126
Southern 50095367191385143138,874
Coca-Cola 60091422711385143163,351
Dover 4001521400118118137,351
Pocono 50023232009494117,451
LifeLock 40025241998888124,776
Toyota/Save Mart 3501912113106106126,699
Lenox Industrial Tools 301124273101855190276,201
Coke Zero 4001921160106106142,551
LifeLock.com 4001824267109109139,251
Allstate 400 at the Brickyard1218160127127216,101
Pennsylvania 50027192008282114,351
NASCAR Sprint Cup Series at the Glen163590115115113,876
Michigan 40078200146146144,726
Sharpie 5003484846161135,936
Pep Boys Auto 50022343249797138,026
Chevy Rock and Roll 4001427400121121121,476
Sylvania 3002133300100100124,326
Dover 400 Number 24211303737115,751
Kansas 40028182667979131,726
Pepsi 500146250121121144,951
Bank of America 500512334155155162,976
Tums Fast Relief 500127501127127122,576
Amp Energy 50032019111655170184,301
Dickies 5001914332106106149,076
Checker O'Reilly Auto Parts 5002127310100100117,551
Ford 40024352679191
9,997363,761+30-0=3,791$5,131,862