What is Bar Graph? A chart is used to display data and further investigate a topic when tabular data does not adequately demonstrate meaningful relationships or patterns between data points. Bar charts and column charts are the most commonly used charts for tracking changes over time between different groups. You may use a graph maker made by FusionCharts to help you create the chart you need. https://www.fusioncharts.com/blog/bar-charts-or-column-charts/