I don't think that's how these calculations should be done. Let's assume that all of their estimates are correct, in most European countries the difference bet

I don't think that's how these calculations should be done. Let's assume that all of their estimates are correct, in most European countries the difference between what you cost an employee and what you take home is often more than a factor of two. Now I'm not quite sure about the UK, but I know about France and Italy and in both those cases if you spend 100 your employee takes home around 40.