如何在百分比饼图中格式化数字？

Question

使用一个简单饼图的官方演示，如何重新格式化所有百分比数字？说，我想四舍五入所有数字。我尝试了从几乎所有东西上放置

numberFormat

属性到全局

root.numberFormatter.set("numberFormat", "#,###");

的任何方法都无济于事。有什么提示吗？

<!-- Styles -->
<style>
#chartdiv {
  width: 100%;
  height: 500px;
}
</style>

<!-- Resources -->
<script src="https://cdn.amcharts.com/lib/5/index.js"></script>
<script src="https://cdn.amcharts.com/lib/5/percent.js"></script>
<script src="https://cdn.amcharts.com/lib/5/themes/Animated.js"></script>

<!-- Chart code -->
<script>
am5.ready(function() {

// Create root element
// https://www.amcharts.com/docs/v5/getting-started/#Root_element
var root = am5.Root.new("chartdiv");


// Set themes
// https://www.amcharts.com/docs/v5/concepts/themes/
root.setThemes([
  am5themes_Animated.new(root)
]);


// Create chart
// https://www.amcharts.com/docs/v5/charts/percent-charts/pie-chart/
var chart = root.container.children.push(am5percent.PieChart.new(root, {
  layout: root.verticalLayout
}));


// Create series
// https://www.amcharts.com/docs/v5/charts/percent-charts/pie-chart/#Series
var series = chart.series.push(am5percent.PieSeries.new(root, {
  valueField: "value",
  categoryField: "category"
}));


// Set data
// https://www.amcharts.com/docs/v5/charts/percent-charts/pie-chart/#Setting_data
series.data.setAll([
  { value: 10, category: "One" },
  { value: 9, category: "Two" },
  { value: 6, category: "Three" },
  { value: 5, category: "Four" },
  { value: 4, category: "Five" },
  { value: 3, category: "Six" },
  { value: 1, category: "Seven" },
]);


// Play initial series animation
// https://www.amcharts.com/docs/v5/concepts/animations/#Animation_of_series
series.appear(1000, 100);

}); // end am5.ready()
</script>

<!-- HTML -->
<div id="chartdiv"></div>