Show status based on the selections from several combobox

I'm creating a checklist with several combobox which have three different items in it, "not started", "started" and "Finished". What I want is to give a status based on the selections of these comboboxes, for instance if all 5 comboboxes show "finished" than status will be Green , if two or more show "not started" then status Red else status Yellow. How do I execute this code in? Combobox