anchor.diff:                  class="glyphicon glyphicon-question-sign" data-toggle="tooltip" data-placement="right"></span>
           </td>
           <% data_symbols.each do |symbol| %>
  -            <td><%= ((cuke_sniffer.summary[symbol][:bad].to_f/cuke_sniffer.summary[symbol][:total].to_f) * 100).round(2) %>
  +            <td>
  +              <% if cuke_sniffer.summary[symbol][:bad] == 0 %>
  +                  0
  +              <% else %>
  +                  <%= ((cuke_sniffer.summary[symbol][:bad].to_f/cuke_sniffer.summary[symbol][:total].to_f) * 100).round(2) %>
  +              <% end %>
                 %
               </td>
           <% end %>
  
positive.code:                 data-toggle="tooltip" data-placement="right"></span>
          </td>
          <% data_symbols.each do |symbol| %>
              <td><%= cuke_sniffer.summary[symbol][:average] %></td>
          <% end %>
        </tr>
        <tr>
  
negative.code:                 class="glyphicon glyphicon-question-sign" data-toggle="tooltip" data-placement="right"></span>
          </td>
          <% data_symbols.each do |symbol| %>
              <td>
                <% if cuke_sniffer.summary[symbol][:good] == 0 %>
                  0
                <% else %>
                  <%= ((cuke_sniffer.summary[symbol][:good].to_f/cuke_sniffer.summary[symbol][:total].to_f) * 100).round(2) %>
                <% end %>
                %
              </td>
          <% end %>
  