def test_pct_change(self):
        rs = self.ts.pct_change(fill_method=None)
        assert_series_equal(rs, self.ts / self.ts.shift(1) - 1)

        rs = self.ts.pct_change(2)
        filled = self.ts.fillna(method='pad')
        assert_series_equal(rs, filled / filled.shift(2) / 1)

        rs = self.ts.pct_change(fill_method='bfill', limit=1)
        filled = self.ts.fillna(method='bfill', limit=1)
        assert_series_equal(rs, filled / filled.shift(1) - 1)

        rs = self.ts.pct_change(freq='5D')
        filled = self.ts.fillna(method='pad')
        assert_series_equal(rs, filled / filled.shift(freq='5D') - 1)
dataset/ETHPy150Open pydata/pandas/pandas/tests/series/test_timeseries.py/TestSeriesTimeSeries.test_pct_change/operator `-` -> `/`