Charts show wrong scaling when total sum of pie parts is greater than 100

I would like to say that I really enjoy using the support module.

When looking at my charts, I saw the odd efect, that some charts show two 50% slices whereas the numbers are way different. After some research I found that either of the two is nessecary:

• getting the chart module to add the parameter chds=0,100000000 to the chart.apis.google.com URL, or
• rescaling of all numbers, so that the sum is less or equal to 100, for example like this
  

      foreach($chart['#data'] as $i=>$v) {
        $chart['#data'][$i] = $v / $count_total;
      }
  

  , before submitting the $chart array to chart_render.

  I attached a possible patch to the faulty support_chart module