Discrepancy for rating percentages in uploads report

[BrokenEagle]

It was reported by Chiara that the percentages for the ratings on the upload reports don't add up to 100%. This appears to be because the numbers are being truncated to integers.

https://github.com/r888888888/reportbooru/blob/master/app/models/reports/uploads.rb#L22-L24

Switching the format string to "%.1f%%" would alleviate this discrepancy, although to eliminate it the numbers would need to be rounded down to whichever decimal point is being used.

[r888888888]

I think %.0f%% is good enough.