decimal_odds,assumed_win_probability,gross_expected_return_percent,commission_on_winnings_assumed,effective_odds,net_expected_return_percent,provenance
2.10,0.5,5.00,0.02,2.078,3.90,Original illustrative calculation; not observed betting results
2.05,0.5,2.50,0.02,2.029,1.45,Original illustrative calculation; not observed betting results
2.00,0.5,0.00,0.02,1.980,-1.00,Original illustrative calculation; not observed betting results
1.95,0.5,-2.50,0.02,1.931,-3.45,Original illustrative calculation; not observed betting results