For detailed information refer to the page JIRA Chart Macro 
on the Atlassian website.
To display a JIRA chart
- Type {jira and when the macro browser opens, select the JIRA Chart macro.
- Select the type of chart to create, for example, Pie.
- In the search box, enter the JQL query corresponding to the issues you want to chart.
- Select Preview.
- When the preview of the chart opens, select Display Options and select the information to Chart by. By default the pie chart is by assigned versus unassigned issues; selecting "issue type" shows the comparative number of sub-task, bug, new feature, analysis, task, and improvement issues.
- In the Display Options select Show chart information to include a text summary under the chart with the total issues count and the type of information.
- Select Insert.
The following JQL query may be used to create a JIRA chart,
project = TEST AND resolution = Unresolved ORDER BY priority DESC, key DESC
For the example selections in the steps, the output is a pie chart showing the types of issues in the Demo Project (TEST) list of issues. The chart has no alt text, so only essential charts should be shown on the NCI Wiki.
