Step-by-step arithmetic breakdown
To calculate 15% of 40, 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 × 40
3. Exact result: 6
Everyday real-world applications
- Retail & Discounts: If a product priced at $40 is discounted by 15%, your savings equal $6.
- Tax & Tips: A 15% service tip on a $40 restaurant bill equals exactly $6.
- Financial Yields: An investment yielding 15% on a principal of $40 produces $6 in interest.