In addition to the sum of the units, add the percentage of the total below in the pop up some leads: [1](https://stackoverflow.com/questions/52044013/chartjs-datalabels-show-percentage-value-in-pie-piece) [2](https://stackoverflow.com/questions/76107432/chartjs-datalabels-show-both-numbers-and-percentages-on-a-pie-chart) [3](https://stackoverflow.com/questions/40994841/chart-js-bar-graph-with-percentage-values)
