it depends on whether the company you park with is willing to share advertising revenue with you, and how much of it. SEDO used to be the most profitable for domain parking some 12-13 years ago when I checked into this, but I'm not up-to-date on this topic, so I can't say anymore.
But with the numbers you've mentioned I would ballpark your earnings at around $20 - $100 a month (but this is based on me assuming that you'll get 25% of the earnings, the real numbers could actually vary... A LOT actually, because it also depends on the niche of the domain, and on the keywords that the ads shown on the parked domain attract clicks for)
Better look into the revenue sharing model (if it exists) of the various domain parking companies and you can get your own estimate.