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pandas.core.groupby.GroupBy.pct_change

GroupBy.pct_change(self, periods=1, fill_method='pad', limit=None, freq=None, axis=0) [source]

Calculate pct_change of each value to previous entry in group.

Returns:	Series or DataFrame Percentage changes within each group.

See also

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Licensed under the 3-clause BSD License.
https://pandas.pydata.org/pandas-docs/version/0.25.0/reference/api/pandas.core.groupby.GroupBy.pct_change.html