MAG's income sources
Income from the core activity (charging airlines for their aircraft using the runways and passengers through the terminals) still accounts for nearly 50% of revenues. These figures are for MAG overall in FY2016 but proportionately representative of the MAN scenario:
Total Revenue £778.8M made up of Aviation £387.4M, Retail £143.8M, Car Parking £137.6, Property £47.5M, Other £62.5M
http://www.magworld.co.uk/magweb.nsf/AttachmentsByTitle/MAHL+Annual+Report+-+year+ended+31st+March+206.pdf/$FILE/MAHL+Annual+Report+-+year+ended+31st+March+206.pdf