If you are a group fitness instructor do you want the club to get you more clients and thus keep large % as commission or you keep more of the revenue but you promote your business and get your own clients.
I agree it depends on the “split”
I think renting the space used may be better in the long run.
But, if you are new to the business, it’s great to have a cleint base built in for you
As with anything, leave room for negotiating!
Give it a try for 6 months then re assess.