Lol ofcourse there is formula. Bitcoin costs 9,500 because its capitalization $175,319,024,151 USD and BCH have capitalization just only $4,329,229,131 USD therefore its costs just 234$ 
Though people here understand how market works but you dont. Anyway hope that expert with knowledge will see that topic and give the formulas.
Lol too,Do you think what the diffrent between BTC and BCH so capitalization can be different?? Technology??, Supplay?? or what?? The capitalization can be diffrent because demand for both is different. So many people want to buy bitcoin rather than BCH and make capitalization can reach $176,687,774,814 Though people here understand how market works but you dont. Anyway hope that expert with knowledge will see that topic and give the formulas.Techonoly, supplay, team, and anything is influential but the most influential is demand. But if you say there is a formula. I hope you find it
Another one nonsense message
I found of course formula because I have brain: if you divide $ capitalization on supply you got actual price. For example current capitalization of BCH is 4,468,878,288 and its supply 18,471,463. Price will be: 4,468,878,288 / 18,471,463 = 241$ (its price on exchanges). There is a formula I was asking for. I also made a formula for forecasting price basing on buy/sell orders (for example to calculate how will affect on price sell order on say 1,000,000$). But this second formula is too complicated for you so I will not public it here.