This example compares degrees awarded across five academic majors at two points in time using three Google Charts pie charts. It displays the original data before, the data after, and a computed difference between them. The code loads the Google Charts corechart package through `google.charts.load` and uses `google.visualization.arrayToDataTable` to format data. It creates separate `PieChart` instances for each view, with the third chart deriving its values via the `computeDiff` method to highlight changes. Data comes from hardcoded arrays rather than the accompanying users.csv file.