Trailing stop based on profit percentage

 
Hello friends, I'm working on a trailing stop that closes the trade if the profit decreases by 10 percent. However, I don't know how to implement it. I would appreciate it if you could help or if you have a similar code, please introduce it to me. Thank you.
 
Your topic has been moved to the section: Expert Advisors and Automated Trading — Please consider which section is most appropriate — https://www.mql5.com/en/forum/172166/page6#comment_49114893
 
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