I am working on creating a surface style, legend and surface settings to create Slope Analysis Maps. These maps show a surface with different colors of hatches in triangles of the surface that are within the specified ranges. I have 3 ranges, 0-10%, 10-20% and 20-100%. I have been able to do everything but include the percentage of the area of the range over the total area of the surface. It just does not look like there is the option for this. I thought maybe an expression, but doesn't look like you can have expressions for table styles. I don't know too much about expressions, so maybe I am missing something here. Any ideas would be appreciated. Attached is a pdf that shows my legend and a surface with the style.
Thank You
Patrick