How are these numbers calculated? (show)

Points Behind 1st  (Full Screen)
Chance Will Win Championship  (Full Screen)
RaceFinishStartLapsLeadPointsBonusPenaltyTotalPurse
Orbitz 300
Stater Bros. 300
Telcel-Motorola Mexico 2003814604949$42,995
Sam’s Town 3003527147585823,680
Nicorette 300
Sharpie Mini 300
Pepsi 300153322411811817,825
O'Reilly 300163920011511524,645
Bashas' Supermarkets 200
Aaron’s 3129112014138514328,875
Circuit City 2502723247828216,775
Diamond Hill Plywood 200
Carquest Auto Parts 300
Dover 200
Federated Auto Parts 300
Meijer 3002720036170517566,900
AT&T 2504425016016024,550
Camping World 200
Winn-Dixie 250
USG Durock 300
Gateway 2502720154828224,985
Kroger 200319190707014,710
NAPA Auto Parts 2008177514214238,025
Zippo 200 at The Glen5128215515536,505
Carfax 250151712411811827,677
Food City 25017225011211227,422
Camping World 30017225011211227,422
Emerson Radio 250
RoadLoans.com 200421210373719,776
Yellow Transportation 300421210373719,776
Dollar General 300
Sam’s Town 250336240646422,290
O'Reilly Challenge
Arizona.Travel 200161120311511523,295
Ford 300
3,036501,934+10-0=1,944$528,128