MOND gravitational acceleration g stemming from the different analytic formulae as a function of the Newtonian external field g_Ne, for a given internal Newtonian acceleration g_N = a₀/100. The magenta data points correspond to the radial acceleration field where g_N = a₀/100 in the QUMOND numerical integrations plotted in Fig. A.1, which consider a Plummer sphere at distances d = 0.5, 1, 2, 5, 10, and 20 Mpc (from right to left) from a point mass representing the Coma cluster. We refer the reader to Fig. A.1 for the values of g_Ne corresponding to each distance d within the Coma cluster. The grey line corresponds to a numerical integration of the average radial acceleration of Eq. (24).