I expect no less than £14k, but that's on the basis that my previous employer said they'd always have me back and that's their most basic pay rate. Hopefully it would be more than that, but I'm not kidding myself, my degree doesn't lead directly to a career path, and I'm quite happy to simply use it as an extra until I've worked my way up to management in a company, which I expect to do so by 25ish.
Again, this based on my previous employer again, I'm working seasonally for them and have been told by the site manager I'm already a great candidate for low-tier management and with a degree I'll be a shoe in for fast track to Unit management, and that's a packet of around £24k.
So yeah, failing everything else, that.