I'd like a similar scheme as food labelling colour codes. So key facts such as % to cause, % to management team, top salary K. This would greatly aid in transparency, rather than trying to read their financial's which are often little more than a glossy brochure. Plus, more auditing on the bigger ones to investigate large inefficiencies/ backhanders wouldn't be a bad idea.
*That's not including their expenses, which I bet are astronomical.
PS: I get that some charities have higher operating costs (e.g. medical research). Especially when I myself suffer from quite a rare condition called CRPS (unfortunately one of the most painful conditions known..), yet I struggle to recommend a charity that is making a difference. I'd love something to go viral like the ice-bucket challenge, but I don't see a way that wouldn't result in serious injuries.