Relax, I am only explaining where that 77% Relative Drawdown is coming from.
“But what is, when the trade goes first in the wrong direction? With a 100$ account the margin call of the broker will come quickly! It will never reach the -500$. And if you’re not fill up your account with fresh money quickly your account is busted. Or in worst case your account is in a negative state because the broker close your trade too early.” - Now this is what you call Maximal Drawdown.
And that is the difference between Relative Drawdown and Maximal Drawdown. If my EA margin called in backtesting it will definitely show in result . However, it only has a maximal drawdown of 52.56% which is reasonable because this setup is in M15 timeframe .
I see that you have a great experience in trading and programming. So why are you not aware of the differences between the Relative Drawdown and Maximal Drawdown? Do you still need more experience to learn the difference between them?
Anyway each everyone of us has different risk appetite. Have a great day buddy and always stay humble.