Hello Virginia Johnson,
I do not have pole fitness experience. You could have a small one person size place or a huge facility to house large numbers simultaneously. Would you own or rent space? How large is that space? The size of a business is your choice which will determine numbers/cost. There is so much to consider; so, I did a google search of your question, which I am sure you already have done; but, that will give you much insight. Here is what I found for you:
Natalie aka NAPS 2 B Fit.