A financial feasibility study assesses the financial viability of a business idea or project. It examines startup capital requirements and sources, operating expenses and revenues, and potential returns for investors. The study uses financial statements like the balance sheet, income statement, and statement of cash flows to evaluate the company's profitability, liquidity, solvency, and stability. Key financial metrics like ratios and cash flow methods are also analyzed to determine if the business or project is financially sound and worthwhile for investment.