Kevin Wilson,ICANN’s Chief Financial Officer wrote on ICANN's blog that many people are interested to know on what the organization is spending its money.
Because you can see financial information constantly updated he added a dashboard,which has simple graphics.You can view it here : http://www.icann.org/idashboard/public/
In order to provide more information about financial information ,you can easily go to Documents and then Financial Information page,which you can find here : http://www.icann.org/en/general/financial.html
On this page there are three section:for general financial information,for the current fiscal year and for for historical financial information on ICANN .
For more details check out : http://blog.icann.org/2009/08/all-our-financial-information-at-the-click-of-a-button/