Tool for converting PowerPoint angle to degree

[Regina Henschel]

Hi all,

I'm looking at https://bugs.documentfoundation.org/show_bug.cgi?id=99617
The reason for that bug is a missing convert from the PowerPoint angle 
unit to degree. I can correct it by /60000. But I think, that converting 
between PowerPoint angle unit and degree is such a common task, that 
there should already exist a tool. But I do not find such method.

If it not exists, shall I write it, if yes where? Or shall I simple fix 
it by /60000 ?

Kind regards
Regina