Again, as long as I speak of losses, I must start this article by saying that is completely impossible to avoid losses. Sooner or later they come to all traders. A good trader simply accept them consciously, which also involves applying systematic rules to keep the losses well controlled.
This article will not discuss the position of the stop loss, it will focus on the loss limit on volume that should be applied in all trades. That is, the maximum amount of money that would be lost if the operation goes wrong. Knowing this amount is essential to calculate the size of the trade.