single value box stacked bar feature

<!DOCTYPE html>
<html>

<head>
  <meta charset="utf-8">
  <title>ZingSoft Demo</title>

  <script nonce="undefined" src="https://cdn.zingchart.com/zingchart.min.js"></script>
  <style>
    html,
    body {
      height: 100%;
      width: 100%;
      margin: 0;
      padding: 0;
    }

    #myChart {
      height: 100%;
      width: 100%;
      min-height: 150px;
    }

    .zc-ref {
      display: none;
    }
  </style>
</head>

<body>
  <div id="myChart"><a class="zc-ref" href="https://www.zingchart.com">Powered by ZingChart</a></div>
  <script>
    ZC.LICENSE = ["569d52cefae586f634c54f86dc99e6a9", "b55b025e438fa8a98e32482b5f768ff5"];
    var myConfig = {
      type: "bar",
      stacked: true,
      legend: {
        toggleAction: 'remove'
      },
      scaleX: {
        labels: ['Week 1', 'Week 2', 'Week 3']
      },
      plot: {
        valueBox: {
          text: 'Stack Total: %total',
          backgroundColor: 'black',
          rules: [{
            rule: '%stack-top == 0',
            visible: 0
          }]
        }
      },
      series: [{
          values: [35, 42, 67],
          stack: 1
        },
        {
          values: [10, 15, 10],
          stack: 1
        },
        {
          values: [25, 45, 25],
          stack: 1
        },
        {
          values: [25, 45, 25],
          stack: 2
        },
        {
          values: [25, 45, 25],
          stack: 3
        },
        {
          values: [25, 45, 25],
          stack: 3
        },
      ]
    };

    zingchart.render({
      id: 'myChart',
      data: myConfig,
      height: '100%',
      width: '100%'
    });
  </script>
</body>

</html>

<!DOCTYPE html>
<html>

<head>
  <meta charset="utf-8">
  <title>ZingSoft Demo</title>

  <script src="https://cdn.zingchart.com/zingchart.min.js"></script>
</head>

<body>
  <div id="myChart"><a class="zc-ref" href="https://www.zingchart.com">Powered by ZingChart</a></div>
</body>

</html>

html,
body {
  height: 100%;
  width: 100%;
  margin: 0;
  padding: 0;
}

#myChart {
  height: 100%;
  width: 100%;
  min-height: 150px;
}

.zc-ref {
  display: none;
}

var myConfig = {
  type: "bar",
  stacked: true,
  legend: {
    toggleAction: 'remove'
  },
  scaleX: {
    labels: ['Week 1', 'Week 2', 'Week 3']
  },
  plot: {
    valueBox: {
      text: 'Stack Total: %total',
      backgroundColor: 'black',
      rules: [{
        rule: '%stack-top == 0',
        visible: 0
      }]
    }
  },
  series: [{
      values: [35, 42, 67],
      stack: 1
    },
    {
      values: [10, 15, 10],
      stack: 1
    },
    {
      values: [25, 45, 25],
      stack: 1
    },
    {
      values: [25, 45, 25],
      stack: 2
    },
    {
      values: [25, 45, 25],
      stack: 3
    },
    {
      values: [25, 45, 25],
      stack: 3
    },
  ]
};

zingchart.render({
  id: 'myChart',
  data: myConfig,
  height: '100%',
  width: '100%'
});