<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def _pct_diff(self, best, other):
 """ Calculates and colorizes the percent difference between @best and @other """

        return colorize("{}%".format(
            round(((best-other)/best)*100, 2)).rjust(10), "red")