A kilo is 1 million mg's, there are 2000mgs per cart of fina, so 1,000,000 divided by 2000 = 500 carts worth of tren. Take the price of a kilo which is somewhere between 12 and 13k, so we will use 12.5k, and we get 12500/500 = $25 per 2g of tren. You buy the carts for $37, hardly worth the risk or the cash outlay and if one were so inclined to try and sell powder, there would be little room for profit.