Formatter: % formatting on right side of assignment

[MichaReiser]

Black prefers to keep the % on the same line as the string and parenthesize the format arguments:

def test():
    if True:
        if False:
            if True:
                if False:
                    if True:
                        if False:
                            self.renamed_models_rel[
                                renamed_models_rel_key
                            ] = "%s.%s" % (
                                model_state.app_label,
                                model_state.name_lower
                            )
                            

Ruff parenthesized the whole assignment value and breaks before the % operator

def test():
    if True:
        if False:
            if True:
                if False:
                    if True:
                        if False:
                            self.renamed_models_rel[renamed_models_rel_key] = (
                                "%s.%s"
                                % (model_state.app_label, model_state.name_lower)
                            )

IMO, Ruff's layout is more readable because it avoids unnecessary newlines.