Step-by-step arithmetic breakdown
To calculate 10% of 20, convert the percentage into a decimal by dividing by 100, then multiply by the whole amount:
1. Convert percentage to fraction: 10 / 100 = 0.1000
2. Multiply by base number: 0.1000 × 20
3. Exact result: 2
Everyday real-world applications
- Retail & Discounts: If a product priced at $20 is discounted by 10%, your savings equal $2.
- Tax & Tips: A 10% service tip on a $20 restaurant bill equals exactly $2.
- Financial Yields: An investment yielding 10% on a principal of $20 produces $2 in interest.