1. **Problem Statement:** Calculate the Return on Investment (ROI) given the necessary financial data. 2. **Formula:** ROI is calculated as $$\text{ROI} = \frac{\text{Net Profit}}{\text{Investment}} \times 100$$ 3. **Explanation:** ROI measures the profitability of an investment as a percentage. It tells us how much profit is earned for each unit of currency invested. 4. **Intermediate Work:** Suppose the net profit is $P$ and the investment amount is $I$. Substitute these values into the formula. 5. **Calculation:** $$\text{ROI} = \frac{P}{I} \times 100$$ 6. **Final Answer:** The ROI is $$\frac{P}{I} \times 100\%$$ which represents the percentage return on the investment. Note: Since the user did not provide specific numerical values, the formula and explanation are given for application with actual data.