# File lib/action_view/helpers/number_helper.rb, line 100
      def number_to_percentage(number, options = {})
        options   = options.stringify_keys
        precision = options["precision"] || 3
        separator = options["separator"] || "."

        begin
          number = number_with_precision(number, precision)
          parts = number.split('.')
          if parts.at(1).nil?
            parts[0] + "%"
          else
            parts[0] + separator + parts[1].to_s + "%"
          end
        rescue
          number
        end
      end