Stacked bar

js

{
  chartType: 'stackedBar', // or 'stackedBar100'
  isDataTransposed: true,
  seriesData: [
    ['', 'Q1', 'Q2', 'Q3'],
    ['Product A', 40, 48, 52],
    ['Product B', 30, 28, 35],
  ],
  title: { visible: true, text: 'Mix by quarter' },
  subtitle: { visible: false, text: '' },
}

stackedBar100 normalizes stacks to 100% and typically formats the value axis with %.

Sample

Live chart and copy-paste HTML: Stacked bar sample.