To decrease $550 by 15%, you can follow these steps:
1. Calculate 15% of $550:
- 15% of $550 = 0.15 * $550 = $82.50
2. Subtract the calculated 15% from the original amount:
- $550 - $82.50 = $467.50
Therefore, decreasing $550 by 15% would result in a final amount of $467.50.