For a fix Bankroll, B , If bet 1 hand with bet size $100, ROR = 13.53% :-

1) Then If bet 2 hands with each hand bet size $73, ROR = 13.53%
2) If bet 2 hands with each hand bet size $50, ROR = e^(-2 * 73/50) = 5.39% ?

I think 1) should be correct, how about 2) ?