Should I get paid for attending mandatory meetings?

Question Details:

I work as a personal trainer in TN who is employed through a gym. I am hourly based as well as getting commissions for sales and memberships on the side. I was asked to cancel/reschedule my normal day so I could attend a mandatory meeting. This has happened several times in the past and I have never been compensated my hourly rate to attend or for the consultations I missed and had to cancel/reschedule. Should I be paid/compensated for my time at the meeting since I had to cancel my clients which is how I get paid? Important Notice