I think we have to say we agree to disagree.  You can either accept or reject the FactCheck article.
The opening of the FactCheck article I referenced, starts with
"Republican presidential candidate Carly Fiorina says that “so little” of the charitable donations to the Clinton Foundation “actually go to charitable works” — a figure CARLY for America later put at about 6 percent of its annual revenues — but Fiorina is simply wrong. Fiorina and others are referring only to the amount donated by the Clinton Foundation to outside charities, ignoring the fact that most of the Clinton Foundation’s charitable work is performed in-house."