Just to give context to the current investment in Microsoft Office licenses – from http://www.brainstormmag.co.za/c-suite/14717-the-man-who-would-save-sita there is this statement: “There are about 100 000 Office 365 licences across government, and while this isn’t a wasted investment, he does foresee a conversation about whether government departments should continue to invest in the Office platform”.
One could make the assumption that the bulk are on the Microsoft Gov Enterprise Agreement pricing to arrive at a rough figure.