 
         _.times(volume.length, (i) ->
           if volume[i].seconds == totals[i].seconds and totals[i].value > 0
-            rate = Math.round((volume[i].value / totals[i].value) * 100)
+            rate = Math.round(((volume[i].value / totals[i].value) * 100) / 100)
           else
             rate = 0
           rates.push({value: rate, date: volume[i].date, seconds: volume[i].seconds})


              values.push({date: date, seconds: d[1], value: val})

          @set 'values', values

          memo + num), 0)

        @set('variance',  dsum / diffs.length)
        @set('stddev', Math.round((Math.sqrt(@get('variance')) * 100)/100))

    relatedMetrics: ->
      if @get('display') == 'rate'
