I guess it would depend on what skills you use. If you used only orange then it could be a set number but if you used any yellow recipes then it would change. I guess it all depends if you want an exact number or an easier time leveling tailoring. I would assume at some time in tailoring yellow recipes are going to be cheaper and use less cloth than orange. However I assume you could still get a round about number. In response to this there is a topic somewhere on here about leveling tailoring efficiently to 225 or so. I don't know where it is but if you look back you can find it.