In my opinion, nothing because first even if it wasn't misspelled, it will be worth less since it is plural plus it is misspelled and it's a 10 cara word
correct spelling = businesses
your spelling = buisnesses
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Worth of the domain now went from a normal type of valuation to a completely different type of category valuation. This no longer is a dictionary word, but a typo domain, intended only for accidental visits.
You can expect:
Reseller: fail to sell - 20$ USD
End User: 5-50$ USD
I don't have much care for these types of domains, but I do know they carry value.. Well some of them do anyways. So if I were to compare my knowledge from past sales/auctions/bids I recall relating to similar types of domains, this would be my best bet. Unfortunately I would have to say , without a doubt, If I owned this domain I would expect to never sell it at all.Hope it helps,
No value as a typo unless it gets decent traffic. As it is a typo of the plural, I doubt the traffic is much. As others before me have stated, park it to see if it gets traffic. If it gets little or none, then just don't renew it.