Fractional mass-loss increase per flare (as given by Eq. (5)) as a function of flare energy for both the low-activity (red) and high-activity (blue) cases, each evaluated at four different orbital distances; the 0.18-0.36 AU range brackets the extent of the HZ for the chosen host star. The horizontal lines at the top denote the energy range over which the FFDs were observationally constrained (Loyd et al. 2018, 2023). Our simulations extend to include flare energies up to 10³⁶ erg. The left and right panels refer to the Earth- and sub-Neptune-sized planet, respectively.