In step 1, we create a calculation called donut and place it on the Rows shelf twice in step 2. In step 3, we change the Marks card from Automatic to Pie. In step 4, we see that we have two pies. In step 5, we modify the format for one pie to be larger than the other pie. In step 6, to hollow out the center, the color of the smaller pie is set to match the background. In step 7, we create a dual axis chart that overlays the smaller circle onto the larger circle. In step 8, we should see a donut chart.
Next, in step 9, we create slices of the donut by moving the categorical dimension to Color on the Marks card (first donut measure). The angle shows how much each slice takes of the whole; in step 10, we put Total Volume on Angle. In step 11, we create a series of donuts by placing region on the Columns shelf. In step 12, we create titles for each donut by moving region onto Label within the Marks card. We format the text so its alignment is top and center. In step 12, we have our final donut chart.