Where 𝑘 𝐴 is the basal exit rate of probe A, 𝑓 𝐵 is the fraction of modulator B within the cluster, and 𝛽 𝐴𝐵 is the value in the β-matrix that corresponds to the extent that modulator B modify the exit rate of probe A. The equation is accommodating of micelles that include more than two types, as exemplified in the compositional flux analysis.