The Chart option is located in the Illustrations area of the Insert tab. Contents of charts and graphs should be clear and labeled.
Go to Insert > Chart > Choose the type of chart that best represents the data:
Once you’ve added your data to the Chart, add Data Labels. There are several ways to add Data Labels. The Add Chart Element option is available in the Chart Tools Design ribbon tab.
Once the data labels have been added, you can adjust the size, if needed, the way you would adjust the size of fonts in text. Depending on the type of data your chart illustrates, you may want additional label options. For example, it may be useful to show the Category Name, Value and Percentage. It just depends on the nature of your data and the purpose of your chart.
Alt Text for Charts
To add alt text to the chart/graph, click on the chart. This should give you access to the Format Chart Area pane. Click on the Layout & Properties icon and add a meaningful description.
There may be too much information to convey in the alt text. If this is the case, be sure to repeat the information described visually in the text of the document.