# File lib/action_view/helpers/number_helper.rb, line 56
      def number_to_percentage(number, options = {})
        options = options.stringify_keys
        precision, separator = options.delete("precision") { 3 }, options.delete("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