This is my understanding of probability.
For example, I have a food stall in front of my house in housing. The price is cheap, the food is delicious, and it's very busy every day. From here I had the idea of opening a branch in the campus area. Let's say I've got a strategic land, I'll treat what's in my shop in front of my house. Do you think the shop will be busy? The answer is not certain, right, but in terms of business brains, it is likely to sell well if you look at the first stall. So here I don't calculate the percentage, just the possibility or the small possibility. That also happens in the trading that I treat. Based on Dow's law, if 3 conditions are met, it's possible for us to make big profits, what if we end up losing? if you lose, you go back to dow's law. The market moves freely. because we are dealing with probabilities, then we have to prepare 2 conditions. losses and profits. Loss we can set at the beginning in the plan how much $ we can afford to lose. Because again, bro, why don't I calculate in percent because in trading (forex also trades) you have to believe in luck too, if we lose, it means opening fortune, if profit, it means our luck.