#CryptoIntegration Yes, I understand 👍 When you say "how much percentage of margin should be used", you mean the main risk management. There is no specific "margin percentage" requirement in the rules of prop firms (FTMO, FundedNext), but generally, there are such principles:

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🔑 Risk and Margin Usage Rules

1. 1–2% risk rule

• It is generally recommended not to risk more than 1% of the total account balance in each trade.

• Example: In a $100,000 account, the max risk per trade is $1,000.

2. Margin usage percentage

• For a safe account, do not use more than 5–10% of the total margin in one position.

• This means that if you use 50–70% of the total account margin, the drawdown limit will burn very quickly.

3. Leverage issue

• In FTMO and FundedNext, leverage is usually 1:100.

• This means there is an opportunity to open very large lots, but you should use small (because the max daily loss is –5%).

4. Positions at the same time

• When opening several positions, their total risk should still not exceed 1–2%.

• So if you open 5 trades, each should have a risk of 0.2–0.3%.

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✅ Practical rule:

• Max risk in trade: 1%

• Margin usage across the account: total 5–10%

• Never use more than 30–40% of the total margin, because if it goes slightly against you, you will immediately hit the –5% daily loss limit.

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Do you want me to write a simple formula for lot calculation (risk % with margin usage), or should I create a ready risk calculator code (Python/Excel) for you?