percentCompleteString|Number|Object(default: 0)
The completion percentage of the task. A value between 0 and 1 representing how much of a task is completed.
Example - set the percentComplete of a task
<script>
var parentTask = new kendo.data.GanttTask({
id: 1,
title: "Parent",
percentComplete: 0.55,
start: new Date("2014/6/17 9:00"),
end: new Date("2014/6/17 11:00")
});
</script>In this article