Initial-final masses for stellar clusters. For each cluster, an average initial and final mass are shown, based on data from Casewell et al. (2009) and references therein. For NGC 2516 we used Dobbie et al. (2012), and we also included the globular cluster omega Cen (McDonald et al. 2011). The drawn line gives the linear fit of Casewell et al., whilst the dashed line is the older relation of Weidemann (2000). The red line shows the relation derived here, Eq. (12).