Step-by-step arithmetic breakdown
To calculate 20% of 200, convert the percentage into a decimal by dividing by 100, then multiply by the whole amount:
1. Convert percentage to fraction: 20 / 100 = 0.2000
2. Multiply by base number: 0.2000 × 200
3. Exact result: 40
Everyday real-world applications
- Retail & Discounts: If a product priced at $200 is discounted by 20%, your savings equal $40.
- Tax & Tips: A 20% service tip on a $200 restaurant bill equals exactly $40.
- Financial Yields: An investment yielding 20% on a principal of $200 produces $40 in interest.