How are these numbers calculated? (show)

Points Above 12th  (Full Screen)
Chance Will Win Championship  (Full Screen)
RaceFinishStartLapsLeadPointsBonusPenaltyTotalPurse
Daytona 50026382008585$276,888
Auto Club 5002218250297510297,850
UAW-Dodge 4002536266888897,350
Kobalt Tools 5004024317434376,810
Food City 5004318373343489,000
Goody’s Cool Orange 5008550014214291,150
Samsung 5001432338121121128,375
Subway Fresh Fit 50017831111211279,125
Aaron’s 499173218811211299,425
Crown Royal Presents Richmond 4003520364585874,125
Dodge Challenger 50011253673130513595,925
Coca-Cola 60023153999494102,100
Dover 40010539911345139106,425
Pocono 500202220010310380,250
Michigan 40010232031134513995,125
Toyota/Save Mart 350181811210910989,375
Lenox Industrial Tools 3014113270404077,530
Daytona 4003240157676792,750
Chicagoland 400212426710010098,100
Allstate 400 at the Brickyard68160150150206,850
Pennsylvania 5009412002138514393,675
Centurion Boats at The Glen16209011511576,800
3M Performance 400101820013413494,900
Sharpie 5001241500127127114,175
California 5002413249919199,725
Chevy Rock and Roll 4002919400767675,525
Sylvania 3003919230464677,850
Dover 400 Number 2369369355556075,450
Kansas 4001716267112112102,250
Amp Energy 500322815936757280,650
Bank of America 500521334155155128,775
Martinsville 5003820466374955475,300
Pep Boys Auto 500720325146146117,475
Dickies 50034334561655170233,825
Checker Auto Parts 50032313281655170152,175
Ford 40037267165165
10,3441683,759+50-0=3,809$3,753,078