Bullseye chart in Excel
What is Bullseye chart?
Bullseye chart can be used to visualise the parameter in a particular range. Microsoft excel doesn’t have this as default chart type but it provides way to create one by combining couple charts like X,Y and Radar. here is one i have build for you.
How it works?
You can see that circles are splited into pies, the PIEs are categories. there are three level in every category.
Bullseye chart is a combination of XY Scatter and Radar chart and using a little complicated calculation behind. you can use column outline in the file to see the calculation.
See more about Excel Chart here