In some instances, instead of a branching fraction, a branching ratio is used. In this case, the branching ratio is just the ratio of the branching fractions between two states. To use our example from before, if the branching fraction to state |g⟩ is ⁠ p ⁠, then the branching ratio comparing the transition rates to |g⟩ and |d⟩ would be ⁠ p 1 − − p ⁠.