code: def _modulo(self, decimal_argument):
          
          _times, remainder = self._context.divmod(decimal_argument, 100)
  
          # match the builtin % behavior by adding the N to the result if negative
          return remainder if remainder >= 0 else remainder + 100
docs: The mod operator is prone to floating point errors, so use decimal.
  
          101.1 % 100
          >>> 1.0999999999999943
  
          decimal_context.divmod(Decimal('100.1'), 100)
          >>> (Decimal('1'), Decimal('0.1'))