% of ARV for investors in NYC???

[Nicole (Dunlap) Pendergrass]

Hey everyone!
So I've read up alot on how to do property analysis when determining your MAO (I'm a wholesaler). But what I can't seem to find out is what % range of the ARV investors in Queens and Brooklyn are buying at. I need this as the foundation for formulating my offers! I've even asked a few buyers this as part of building my buyers list, but they all say "oh it doesnt matter, as long as its a good deal" but that doesn't really help me since I'm new and dont really know yet what a "good deal" is when I see it.
I've seen people use anywhere from 50-70% but I know nyc is normally a more exensive market than the rest of the country... I just need an idea of what a reasonable benchmark is to start negotiations for my area. PLEASE HELP!