NSC mass versus in situ NSC mass fraction for the 25 galaxies studied in Fahrion et al. (2021) as well as the two dwarf galaxies, KK 197 and KKs 58 (Fahrion et al. 2020a). The symbols indicate the dominant NSC formation channel as identified in Fahrion et al. (2021), based on stellar population analysis of the NSCs in comparison to their host galaxies. Galaxies that were modelled in this work are highlighted with a small black symbol and show the inferred uncertainties on f_in, NSC. For the other galaxies, the fitting function for the ACS galaxies as in Table 2 was used (dotted line). The grey dashed line shows f_in, NSC = 50%.