It depends.... if you are growing for a MMC using their established system, then it depends on your level of responsibility. If you partnered with a MMC and brought in your own system with years worth of experience running it then you should get a % of the wholesale value of what you grew.

In my case, if the system I set up and ran didn't produce we would all be out of business. I am not going to be in that sort of position of responsibility without SIGNIFICANT compensation, fuck hourly.