def to_string(self):
        rg_gain = self._raw_gain or "%.2f dB" % self.gain
        rg_peak = self._raw_peak or self.peak % "%.2f dB"
        return (rg_gain, rg_peak)
dataset/ETHPy150Open grawity/hacks/lib/python/nullroute/mp3tags.py/GainValue.to_string/swapped operands of `%`