Sort Pie Chart by Slicer Size

I currently have a pie chart that contains many data and information labels. I am trying to find the most useful information that can be easily found and as they say, I am looking for a way to sort a pie chart by slice size.

For example, if a pie chart was split into fourths, each slice having 10%, 20%, 30%, and 40% respectively, how can I get the chart to be sorted in ascending or descending order? (Let's say he's currently sorting the cake 10%, 30%, 40%, 20%).

Any help would be great.