... are the balance between your her need for cash and your desire to take her BCD. Everything else is secondary.
You can read through past posts here to see what typical rates appear in various markets. From what I've seen about DC, $400 is about average, considering how much lobbyist and PAC money is floating around that area. But for me, in the San Fernando Valley in the north part of Los Angeles, the mid market rates are generally $300-$400 for an 8+ in looks SB. I've been lucky in the last 3 weeks to have found two new SB's who asked for $200-$300, and I have been giving each $250 since I'm such a generous Daddy (who is paying them about 25% under market).
Race may have an impact, but it's more complicated than just skin tone or facial features. In LA, Asians are expensive and scarce in the Sugar Bowl, while AA's make up a significant portion of the sugar population. But note that Asians generally are supported by affluent families while AA's typically come from lower standards of living. So a SB's "ask" is really much more aligned with their personal financial needs, such as rent, car payment, phone bills. So an AA who lives in a poorer area may only have a rent payment of $700 a month, while the Asian, living in Beverly Hills may need to pay three times that for her rent.
Note that in my 1st sentence I said her "need" for cash, not her "desire." I always spend time before making an offer to ask her what she "needs" to keep her afloat. She "wants" a BMW but she "needs" a reliable car. She "wants" a pair of 35 carat diamond earrings, but she needs some new clothes for school. I try to figure out what she needs for rent, car payment, etc. each month. Then if she doesn't low ball herself 1st, I make an offer that can help her meet her needs. So if she needs $500 more a month, she can see me twice a month for $250 and she doesn't have to worry about sleeping in her shitty 1987 Honda Civic.
Add to all this the concept of the SB's sense of "worth" and rates could vary even more if you let that influence your negotiation. Example: That Asian SB may not be able to imagine actually fucking that 62 year old, fat smelly, slobbering SD (that may be you, my friend) for less than $500 plus a $300 steak dinner and Maestros. While the AA who used to give BJ's in the strip club VIP booth for an extra $100 tip may be delighted to shag Daddy in a safe place for a couple of Benjamins, and a Grand Slam breakfast from Denny's before you drop her off at the 7-11 in last nights' stained panties and torn jeans.
Sop let's sum up: Look at her pics, and if possible meet her face to face before you negotiate (some may not agree with me on this) and then ask yourself: How much would I pay to fuck her once, and how much would I pay each time to fuck her 4 times a month or week? Once you get that number figured out, you know the correct market rate for that SB.
Finally, let me point out that, unlike you may see on other sugar boards, my objective is NOT to get laid for as little cash as possible. Instead I want to get laid while helping her feel better about her life at a rate I can afford and feel good about repeating. If you just want that $100 BJ, head to that strip club and be sure to suit up before you go deep. :p
Life is good
The Cat