How are these numbers calculated? (show)

Points Behind 1st  (Full Screen)
Chance Will Win Championship  (Full Screen)
RaceFinishStartLapsLeadPointsBonusPenaltyTotalPurse
Chevy Silverado HD 2503535235858$13,250
San Bernardino County 200
American Commercial Lines 200
Kroger 250
O'Reilly Auto Parts 2502832161797910,600
Quaker Steak and Lube 200
NASCAR Craftsman Truck Series Ohio 250262624885857,600
AAA Insurance 2002235186979711,600
Sam’s Town 4002233163979711,325
Michigan 2002731100828210,550
Toyota Tundra Milwaukee 200262919685858,125
O'Reilly 200313118370708,950
Built Ford Tough 2252334147949412,100
Power Stroke Diesel 20032319667678,060
Toyota Tundra 200273114782826,600
O'Reilly 20034248861617,200
Missouri/Illinois Dodge Dealers Ram Tough 200233214894949,425
New Hampshire 200273319782828,075
Smith’s Las Vegas 350273011182828,025
Mountain Dew 25035306585812,355
Kroger 200
EasyCare Vehicle Service Contracts 20031368870708,225
Silverado 350K34363361617,775
Casino Arizona 150
Ford 200
2,32101,404+0-0=1,404$169,840