How are these numbers calculated? (show)

Points Behind 1st  (Full Screen)
Chance Will Win Championship  (Full Screen)
RaceFinishStartLapsLeadPointsBonusPenaltyTotalPurse
Chevy Silverado 2502227732975102$16,635
San Bernardino County 200302897737310,995
American Commercial Lines 200243112891919,335
Kroger 250273125282829,110
O'Reilly Auto Parts 25015291671118512314,735
NC Lottery 200263313685858,460
Ohio 250293025076767,860
AAA Insurance 2003025129737310,785
Sam’s Town 400292711917658110,635
Cool City Customs 200283099797910,535
Milwaukee 200172619811211211,285
O'Reilly 200253220288889,110
Built Ford Tough 225182615010910914,685
Power Stroke Diesel 200183020010910911,310
Toyota Tundra 20028307379796,935
O'Reilly 200182120210910910,635
Gateway 200303111973739,265
New Hampshire 200212019910010010,485
Quik-Liner Las Vegas 350172814711211211,310
Mountain Dew 250292750767612,860
Kroger 20017182001121129,560
Georgia 200182712910910911,160
Silverado 350K25286288888,410
Casino Arizona 150203015010310311,860
Ford 20023311369494
3,66742,323+15-0=2,338$257,955