The commission rate can be set to 0%, or increments of 5% up until 50%: 0%, 5%, 10%, 15%, etc. The commission rate on a strategy is set at the creation of the strategy, but can be changed later on.
When a commission rate is changed, it only affects new investments into that strategy. Existing investments remain at the commission rate that was set when they were opened.
We recommend following this link to read more about how the commission rate is set by a strategy provider.