Sure! Here’s a clear and accurate English translation of your text, properly organized:

Understanding the concept of Margin Level is very important. The broker uses the Margin Level as a criterion to determine whether a trader is allowed to open new trades or not.

If the Margin Level falls below a certain threshold, opening new trades will no longer be possible. Moreover, if the Margin Level reaches the stop-out percentage specified for each account, trades will be stopped out starting from the most losing position. This process continues until the account’s Margin Level rises above the stop-out level.

Margin Level is the ratio of Equity to Margin, expressed as a percentage.

The formula to calculate the Margin Level is as follows:

Margin Level = (Equity ÷ Margin) × 100

If you want, I can make it even more formal or simplified. Would you like that?