  Complex quantum trajectory approach, which arose from a modified de
Broglie-Bohm interpretation of quantum mechanics, has attracted much attention
in recent years. The exact complex trajectories for the Eckart potential
barrier and the soft potential step, plotted in a previous work, show that more
trajectories link the left and right regions of the barrier, when the energy is
increased. In this paper, we evaluate the reflection probability using a new
ansatz based on these observations, as the ratio between the total
probabilities of reflected and incident trajectories. While doing this, we also
put to test the complex-extended probability density previously postulated for
these quantum trajectories. The new ansatz is preferred since the evaluation is
solely done with the help of the complex-extended probability density along the
imaginary direction and the trajectory pattern itself. The calculations are
performed for a rectangular potential barrier, symmetric Eckart and Morse
barriers, and a soft potential step. The predictions are in perfect agreement
with the standard results for potentials such as the rectangular potential
barrier. For the other potentials, there is very good agreement with standard
results, but it is exact only for low and high energies. For moderate energies,
there are slight deviations. These deviations result from the periodicity of
the trajectory pattern along the imaginary axis and have a maximum value only
as much as $0.1 \%$ of the standard value. Measurement of such deviation shall
provide an opportunity to falsify the ansatz.
