Mean ratio of the rate of BH formation above a minimum mass, M_BH, min, to the rate of CC SNe at z < 0.4. The black line shows this ratio as a function of M_BH, min assuming the metallicity-dependence cosmic star-formation history (CSFH) of Langer & Norman (2006). The red and blue lines, bounding the grey shaded region, are the result of adopting a CSFH shifted up/down by 0.2 dex in 12+log(O/H), respectively. The horizontal dashed line is the estimated LFBOT volumetric rate (Ho et al. 2023b). We therefore find that the predicted formation rate of BHs with masses greater than (38${}_{-5}^{+3}$) M_⊙ is consistent with the LFBOT event rate.