Thread:Project:Support desk/Pie charts

On Wikipedia the following generates a good pie chart in the entry Helium, but here and on Wikiversity, it and its called templates does this:

Each of the mediawiki functions apparently work fine but "border-width" does not seem to want to give the correct arc. Help! As you can see, it also doesn't work here. Comments, suggestions are most welcome! Marshallsumter (talk) 18:09, 21 June 2015 (UTC)