Profit at risk is when you stand to lose money if something unexpected happens. It's like when you go to the store to buy something. You hope the item won't cost too much but if you buy it and it turns out to be more expensive than you thought, you have to pay the extra even though you didn't expect it. Profit at risk is the same thing except you're taking a risk on how much you are going to make in profits from something. So if you take a chance and make a really big sale, you might make a lot of money. But if something goes wrong and the sale doesn't go through or you have to refund the customer you may end up losing money. That's why it's important to be careful when taking risks - you have to weigh the risks and rewards before jumping in.