Step-by-step arithmetic breakdown
To calculate 15% of 400, convert the percentage into a decimal by dividing by 100, then multiply by the whole amount:
1. Convert percentage to fraction: 15 / 100 = 0.1500
2. Multiply by base number: 0.1500 × 400
3. Exact result: 60
Everyday real-world applications
- Retail & Discounts: If a product priced at $400 is discounted by 15%, your savings equal $60.
- Tax & Tips: A 15% service tip on a $400 restaurant bill equals exactly $60.
- Financial Yields: An investment yielding 15% on a principal of $400 produces $60 in interest.