Fix analytics bars

TODO

@@ -11,6 +11,8 @@
 - Granting exceptions should switch the user's current session
   to the new rule.
 
+- Generic flow regrade (also for not-for-credit)
+
 Ideas
 =====
 

course/templates/course/analytics-flow.html

@@ -35,18 +35,18 @@
       <div class="progress">
         <div class="progress-bar progress-bar-success" role="progressbar"
           aria-valuenow="{{ astats.average_correctness_percent }}" aria-valuemin="0" aria-valuemax="100"
-          style="width: {{ astats.average_correctness_percent|floatformat:1 }}%">
-          <span class="stats-percentage">{{ astats.average_correctness_percent|floatformat:1 }}%</span>
+          style="width: {{ astats.average_correctness_percent|floatformat:9 }}%">
+          <span class="stats-percentage">{{ astats.average_correctness_percent|floatformat:9 }}%</span>
         </div>
         <div class="progress-bar progress-bar-danger" role="progressbar"
           aria-valuenow="{{ astats.average_wrongness_percent }}" aria-valuemin="0" aria-valuemax="100"
-          style="width: {{ astats.average_wrongness_percent|floatformat:1 }}%">
-          <span class="stats-percentage">{{ astats.average_wrongness_percent|floatformat:1 }}%</span>
+          style="width: {{ astats.average_wrongness_percent|floatformat:9 }}%">
+          <span class="stats-percentage">{{ astats.average_wrongness_percent|floatformat:9 }}%</span>
         </div>
         <div class="progress-bar progress-bar-warning" role="progressbar"
           aria-valuenow="{{ astats.average_emptiness_percent }}" aria-valuemin="0" aria-valuemax="100"
-          style="width: {{ astats.average_emptiness_percent|floatformat:1 }}%">
-          <span class="stats-percentage">{{ astats.average_emptiness_percent|floatformat:1 }}%</span>
+          style="width: {{ astats.average_emptiness_percent|floatformat:9 }}%">
+          <span class="stats-percentage">{{ astats.average_emptiness_percent|floatformat:9 }}%</span>
         </div>
       </div>
     </div>