I'm trying to indicate a Subtotal (83% in the image below) and then a total (83+17=100) below that.
Options I'm considering (but don't particularly like):
- The "sum" line above 83%
- Making the second "sum" line (above Total) a double line
- Putting a box above each total to show what it sums (so a box around whole column from 9 ...5, from 30%...63% and 83% to 17%
- 3 increasing darkness of shade ( #, Subtotal#, Total#) (second screen shot below)
- Similar to above but just black (or maybe black+italics) and black + bold (screen 3)