OK, if you have no connects, you will pay 35-50. If you have some real connex and can buy at least a few, the prices are much lower. On blow of 65% or so purity you are looking at 20K or less in NYC (SWIM deals with Dominicans and Jamaicans there), but only about 14K (this is only rumor, though) in Miami. For the Midwest (this info is first-hand from a friend from 6 yrs. ago and based on less reliable info from him much more recently), if you have Mexican connections, you can score somewhere between the two. Pure product is obviously a lot more.
I think, with all due respect, Alkadelics info is a bit off. 75% pure coke in NYC goes for about a grand. At 35 ox (rounding down) per ki, that is 35K, so I doubt anyone makes 50K off of it there, unless they were selling it by grams. Anyone who PAYS 35 is getting ripped off even if they are buying only one kilo and it is 99% pure.
But a word of caution: If you want to be this high on the chain (and remember it is still low enough that you aren't getting particularly rich) then you need to accept two things:
First, guns are required and carried by just about everyone above oz. quantities.
Secondly, you could go down for a long time and they will try to make you roll. Same with any of your customers.
PS: judging by your inability to post in the correct forum, and your lack of knowledge of prices, I would guess that "moving up" is a move that will only lead to trouble for yourself and others.