Donut Chart

Morris.Donut({
  element: 'graph',
  data: [
    {value: 70, label: 'foo'},
    {value: 15, label: 'bar'},
    {value: 10, label: 'baz'},
    {value: 5, label: 'A really really long label'}
  ],
  formatter: function (x) { return x + "%"}
});