anchor.diff:  
          var sortPermanently = false;
          function drawChart() {
  +           var formatter = new google.visualization.NumberFormat({ pattern: "#.#%"});
  +           if(multipleGenes) {
  +               formatter.format(histogramData, 1);
  +               formatter.format(histogramData2, 1);
  +           } else {
  +               formatter.format(histogramData, 1);
  +               formatter.format(histogramData, 2);
  +               formatter.format(histogramData, 3);
  +               formatter.format(histogramData, 4);
  +               formatter.format(histogramData2, 1);
  +               formatter.format(histogramData2, 2);
  +               formatter.format(histogramData2, 3);
  +               formatter.format(histogramData2, 4);
  +           }
  +
              var histogramView = new google.visualization.DataView(histogramData);
              var histogramView2 = new google.visualization.DataView(histogramData2);
              var histogramView3 = new google.visualization.DataView(histogramData3);
  
positive.code:               },
                vAxis: {
                      title: 'Percent Altered',
                      maxValue: lastStudyLoaded ? maxAlterationPercent : 100,
                      minValue: 0
                },
      	      animation: {
                    duration: 750,
  
negative.code: 
          loadStudiesWithIndex(0);
          function formatPercent(number) {
              return parseFloat(number.toFixed(3));
          }
  
          function updateHistograms(bundleIndex, cancerID) {
  