As the name implies, the sliding point is the sliding unit price. You found the right opportunity to buy EUR/USD at 1. 1353, but the final transaction price was 1. 1359, with a slip of 6 points.

If the market judgment is correct, the target profit-taking position is 1. 1387, and the transaction price has slipped to 1. 1383 at the time of liquidation, another four points. It could have made a profit of 34 points, but due to two mistakes, it only made a profit of 24 points, losing 10 points, 100 dollars.