The hash tag is probably an option specified in data formatting. Maybe the % character got replaced with # there.
I'm trying to get my head around a running total of a percent. That doesn't seem like a useful value. I can't quite reproduce your math form just the data shown. I must assume that your screen shot doesn't show all the issues for the data you are using in this example.
I don't see any simple field types/settings that will produce what you want either....