title: archartengine : percentage for Y values
body: <p>Is it possible to define percentages between Y values ? </p>
  
  <p>I mean: </p>
  
  <p>I have time value  "3.30" ; linechart puts ".30" as "30 %"</p>
  
  <p>But I want to use 60 for 100% value ( for minutes) so ".30" will be shown as "50%"</p>
  
  <p>It can be made :</p>
  
  <pre><code>minute = minute * 100 /60;
  </code></pre>
  
  <p>But I want to show my original time values on graphic also.</p>