Looking for career advice. For those familiar with the government/private sector job market, how much worse is a Master's compared to a Ph.D when it comes to finding work (I'm in mathematics)?

I'm asking because I had to switch advisers four years into my grad program and it's set me back enough that I don't know whether I'll complete the doctorate before funding dries up. Ideally I'd like to finish, but in case I don't I would like to get an idea about my prospects.