Well JRd1st I think you don't understand quite well the meaning of the "empty" indicator, the scale as Tullik named it more correctly...
However it's not so difficult...
Taking the example of Ulysses, what's the meaning of the Scan Report scale about the Severity of the found erroneous data?
Total errors: 467
High: 134 of 467 = 28,69% of all errors
Medium: 302 of 467 = 64,67% of all errors
Low: 31 of 467 = 6,64% of all errors
Lowest: 0 of 467 = 0%
28,69% + 64,67% + 6,64% = 100%
That's it : :
So, why shoud that percentage scale bar be removed? :
A little angry at maths perhaps?