Page 18 and 19. Out of a budget of $217 million, they spent $34 million on direct program expenditures. That's about 16%, not 88% as your link would lead us to believe.
Additionally, what is this money spent on?
Clinton Global Initiative, Clinton Presidential Center, Clinton Development Initiative, Clinton Health Matters Initiative, Clinton Giustra Sustaninable Growth Initiative
A little self-serving, don't you think? And what percentage of the money going to those initiatives do you think are spent on directly charitable causes?
No one should be under the illusion that the Clinton Foundation is a charity. It isn't. It's a slush fund for political purposes. Look at how mismanaged the billions of dollars for Haiti has been if you want to see how charitable the Clintons are (spoiler: nearly none of the money has actually been spent on Haiti, and virtually none of it on direct relief).