diff --git a/module/block/view/waterfallganttblock.html.php b/module/block/view/waterfallganttblock.html.php
index 68b5c3132e..a63f49f165 100644
--- a/module/block/view/waterfallganttblock.html.php
+++ b/module/block/view/waterfallganttblock.html.php
@@ -86,12 +86,12 @@
                 minTimeGap         = Math.min(minTimeGap, endDatetime - startDatetime);
                 item.tasks         = [];
                 item.completeTasks = [];
-                item.progress      = 0;
+                item.progress      = Number.parseFloat(item.taskProgress.replace('%', ''), 10);
                 plans.push(item);
             }
             else if(item.type === 'task')
             {
-                item.progress = Number.parseInt(item.taskProgress.replace('%', ''), 10);
+                item.progress = Number.parseFloat(item.taskProgress.replace('%', ''), 10);
                 tasks.push(item);
             }
         });
@@ -105,7 +105,6 @@
                 plan = plansMap[plan.parent];
                 if(typeof(plan) != 'object') return;
             }
-            plan.progress += task.progress;
             if(task.progress === 100) plan.completeTasks.push(task);
             plan.tasks.push(task);
         });
@@ -122,7 +121,6 @@
         /* Update gantt plans and bars */
         $.each(plans, function(index, plan)
         {
-            plan.progress = !plan.tasks.length ? 0 : plan.progress / plan.tasks.length;
             var $plan = $('<div class="gantt-plan"></div>');
             $plan.append('<div class="strong" title="' + plan.name + '">' + plan.text + '</div>');
             $plans.append($plan);