Demonstrating live performance of EA?

 

Hello

I have an EA and would like to demonstrate the live performance to my potential customers. What is the best ways to prove and showcase live results?
I saw some sellers providing screenshots of signals or charts. As far as I understood a signal can only be run for one account. This would mean that I would need to have one account for each EA to measure the performance?

Furthermore, how can people be sure that the EA is actually running on this account and producing the shown results? Is there any other possibility?

Thanks in advance for your much appreciated answers. :)