Step-by-step arithmetic breakdown
To calculate 15% of 120, 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 × 120
3. Exact result: 18
Everyday real-world applications
- Retail & Discounts: If a product priced at $120 is discounted by 15%, your savings equal $18.
- Tax & Tips: A 15% service tip on a $120 restaurant bill equals exactly $18.
- Financial Yields: An investment yielding 15% on a principal of $120 produces $18 in interest.