At both clubs I was also employed to teach classes. One club charged me a flat rate no matter what I charged my clients. The other club had their set rates for personal training (ex. $40/half hour or $60/hour) and I paid them 25% for utilization of their club facility. At the one club I was responsible for hand recording every training session and then they billed me at the end of the month with the flat rate total amount per session. At the other club I entered all daily training sessions on the computer and the computer deducted the 25% automatically based on their set rates. Hope this information helps!