Assuming that the total amount of funds in the account remains unchanged, the larger the position, the more margin needed to open the position, and the less margin left in the account. The remaining margin is a fund to resist the risk of exchange rate fluctuations. The more funds you have left, the more exchange rate fluctuations you can resist, and the less risks you can resist. If the remaining funds are lost, it will break out. On the other hand, the bigger the position, the greater the losses caused by exchange rate fluctuations, which also increases the risk of trading.