Creating a report with a single chart is very simple using WOW Wizard fusion feature. Steps include:
Click on your Wizard of your application and select Create Fusion Chart Wizard.
Select the type of chart you desire:
and WOW Wizard will automatically insert a chart operation into your application:
You can see in properties section of the operation, that the Pie2D chart that I selected in Wizard is automatically inserted for me:
Now, running the application will show my chart:
To make this chart demonstrate your data, click on the OP button to open the edit operation screen:
In the Basic Section of WOW builder, adjust your SQL operation code, title and description if desired, and change the captions within the Properties section shown below. Update and re-run your application.
This will show your new chart:
Adjusting the size and color, background, fonts and other items can be managed in the properties section as documented here.