Michigan's average salary is a it below Austria's average salary. Not having American costs covered (healthcare etc) may change the salary impact a little. It'

Michigan's average salary is a it below Austria's average salary. Not having American costs covered (healthcare etc) may change the salary impact a little. It's hard to tell without knowing what she does exactly, but as a white collar worker for a tech company she'll probably be earning similar to other white collar workers in Michigan. You won't be able to enjoy the same comfort working for a Bulgarian company in Silicon Valley, but this seems like a rather balanced pick.