Financial Ratios Made Simple

Financial ratios are easy to forget if you only memorize formulas. They stay with you much longer when you can see where each number comes from in the financial statements. At a high level, financial ratios look at three things: stability, profitability, and efficiency.

Stability — Is the Company Financially Sound?

Current Ratio = Current Assets ÷ Current Liabilities

This shows how well a company can cover debts due within one year using assets that can be turned into cash within one year. A ratio of 100% or higher generally indicates short-term payment capacity, while 150-200% is often preferred.

Debt Ratio = Total Liabilities ÷ Total Equity

This shows how much the company relies on debt. Lower is generally more stable, and 200% or below is often viewed as healthy. However, capital-intensive industries such as manufacturing and infrastructure naturally tend to have higher ratios, so comparison with the industry average is essential.

Equity Ratio = Total Equity ÷ Total Assets

This is the share of total assets funded by “the company’s own money,” or equity. The higher it is, the more resilient the company tends to be against external shocks. A ratio of 30% or higher is often used as a reference point.

Profitability — How Well Does It Earn?

• Gross Profit Margin = Gross Profit ÷ Revenue: profitability from selling the product or service itself, after subtracting cost of sales from revenue.
• Operating Margin = Operating Income ÷ Revenue: the real profitability of the core business after operating expenses such as payroll and rent.
• Net Profit Margin = Net Income ÷ Revenue: the final profit margin after all expenses and taxes.

Use operating margin to judge whether the core business is healthy, and net profit margin as the final report card.

Efficiency — How Well Is Capital Being Used?

ROE = Net Income ÷ Total Equity

ROE shows how much profit the company generated from shareholders’ capital. It is a key metric from an investor’s perspective, and 10% or higher is often considered good.

ROA = Net Income ÷ Total Assets

ROA shows how efficiently the company used all of its assets, including assets financed by debt.

ROE and ROA should be read together. Heavy borrowing can lift ROE even when ROA does not improve, so a company with high ROE alone may simply have a return figure inflated by debt.

Check the Numbers Directly in the Tables (Free)

We built a tool where choosing a ratio highlights the numerator in blue and the denominator in orange, directly in the balance sheet and income statement. When you can see exactly where current assets and current liabilities come from for the current ratio, the formula becomes much easier to remember.

👉 Open the Financial Ratios Explorer (oiyo.net)

Frequently Asked Questions

Q. Is one financial ratio enough? No. A single ratio only shows one side of the company. For example, a company may have a high current ratio, but if its profitability, such as operating margin, is weak, it may be a company with little debt but poor earnings. Stability, profitability, and efficiency need to be read together.

Q. Are the benchmark levels absolute? No. They vary widely by industry. IT and service businesses often look strong on ratios because they hold fewer assets, while manufacturing and retail companies may carry more inventory and equipment. The key is to compare several companies in the same industry and several years of the same company’s trend.

Q. Can I use these directly for personal investing? Financial ratios are only a starting point. Real decisions require multi-year trends, peer comparison, and disclosure documents such as annual business reports. This article and tool are for educational purposes and are not investment advice.

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