If you are looking for a tabular report you can stop here. This does not look very nice on a dashboard, however. Now I will show you how to convert this into a grouping of colorful indicators.
Remove the [Rating] field from the bottom row and create an indicator by right-clicking on the placeholder and selecting Insert > Indicator. Then select the type you would like.
There are several steps, but Derik lays it all out nicely with screenshots.