In the next week or so I'll be having a meeting with my manager to discuss the promotion I recently got. I'm taking over the role of a work-mate who is currently serving his notice period. I know how much he got paid and I also know that the offer I'm going to get will be slightly less.
How do I properly/ethically say "I know (Joe Bloggs) got £xx,xxx a year, can you match that for me?"
I work for a large company with a huge budget, so that's not a problem.