For anything. Doesn't really matter what.
Of course it's money-related. Negotiating the price of things. Business, work, salary, personal, anything.'
Just fishing for ideas.
Base it on what is was in the past.
Cost of living increases.
Devaluation.
Comparison to similar situations/items. Current market value.
Compromise -- Both sides give in a little.
And then the "less honest" ways, too. I'm looking for anything. It's a money issue. By less honest, I mean... There is the market value of something. That's what it's worth. You do a little research and you can find that out. And then there's arguing/negotiating with someone -- You can knock out there argument or bring up extra points. "That's true, but for x, y, and z, that really isn't a great reason. So, the price should be lower." Kind of mentally knock out their argument, knock them off their feet. And any ideas about how to do that without insulting them, tact, is great too. To make them feel ok/good/pleased without feeling insulted, demeaned, ripped off, etc. Ill will toward the other person.
In this case it's a money issue. I don't like the other side but I have to deal with them. It may be a situation where if I bring up the right point, they just give up right away. And it's possible if I bring up too much, they'll get ticked off that I'm trying to lower their numbers. A nice, quick strike would be good.
That's another idea I've heard. Reframe it so it's not me-vs.-them, but.... What I want and what they want and see if there's an alternate option. That way no one "loses." That might be a very good idea. A win-win on each side is possible that way.
Other ideas?