1. **Problem:** A fashion designer buys fabric for 500 and sells a dress made from it for 800. What's the profit percentage? 2. **Formula:** Profit percentage is given by $$\text{Profit \%} = \left(\frac{\text{Selling Price} - \text{Cost Price}}{\text{Cost Price}}\right) \times 100$$ 3. **Step-by-step solution:** - Cost Price (CP) = 500 - Selling Price (SP) = 800 - Profit = SP - CP = 800 - 500 = 300 4. Calculate profit percentage: $$\text{Profit \%} = \left(\frac{300}{500}\right) \times 100 = 0.6 \times 100 = 60\%$$ 5. **Answer:** The profit percentage is 60%.