def get_percentage(self):
cumulative_elapsed_time = self.get_cumulative_elapsed_time()<EOL>sum_elapsed_time = sum(cumulative_elapsed_time, datetime.timedelta())<EOL>if not sum_elapsed_time:<EOL><INDENT>raise ValueError("<STR_LIT>")<EOL><DEDENT>return [div_timedelta(t, sum_elapsed_time) for t in cumulative_elapsed_time]<EOL>
Get the cumulative time percentage of each stopwatch (including the current split).

        Returns
        -------
        cumulative_elapsed_time_percentage : List[float]