What percentage should take profit be?

As a cryptocurrency investor, I'm often faced with the question of when to take profit. With the volatile nature of the market, it can be difficult to determine the optimal percentage for taking profits. So, what percentage should take profit be? Is there a rule of thumb or a strategy that can help me make an informed decision? I understand that the answer may vary depending on individual risk tolerance and investment goals, but I'm looking for some general guidance on this topic.