🎓 Prepared by students from Boğaziçi University

What is Financial Ratio Analysis?

Financial ratio analysis uses key metrics derived from financial statements to evaluate a company's profitability, liquidity, solvency, and operational efficiency. Investors and managers rely on ratios to benchmark performance and identify trends.

Short answer

Financial ratio analysis calculates key metrics (e.g., ROE = Net Income / Equity, Debt-to-Equity = Total Debt / Equity) from balance sheets and income statements. Ratios are grouped into profitability, liquidity, leverage, and efficiency categories to assess company health.

Ratio Categories
Profitability Ratios
  • Gross Profit Margin
  • Net Profit Margin
  • Return on Assets (ROA)
  • Return on Equity (ROE)
Liquidity & Leverage Ratios
  • Current Ratio (Current Assets / Current Liabilities)
  • Quick Ratio
  • Debt-to-Equity Ratio
  • Interest Coverage
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Try it: interactive calculator

Return on Equity (ROE)
10%
= (500,000/5,000,000)*100
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Step-by-step worked examples

Company A has net income €50k and shareholder equity €500k. Calculate ROE.

ROE = Net Income / Shareholder Equity
ROE = €50,000 / €500,000 = 0.10 = 10%

A company has total debt €200k and equity €800k. What is the debt-to-equity ratio?

D/E = Total Debt / Equity
D/E = €200,000 / €800,000 = 0.25 or 25%

Gross profit is €100k, sales are €250k. What is the gross profit margin?

Gross Profit Margin = Gross Profit / Sales
GPM = €100,000 / €250,000 = 0.40 = 40%
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Flashcards

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Quick quiz

Q1.If net income is €40k and equity is €400k, ROE is…

Correct answer: B. ROE = €40k / €400k = 0.10 = 10%.

Q2.A high debt-to-equity ratio indicates…

Correct answer: B. High D/E means more debt relative to equity, higher financial risk, and greater leverage.

Q3.Current Ratio = Current Assets / Current Liabilities. A ratio of 1.5 means…

Correct answer: B. Ratio of 1.5 means the company has €1.50 in current assets for every €1 of current liabilities.

Q4.Gross profit margin vs. net profit margin?

Correct answer: A. Gross margin = sales minus COGS. Net margin = all revenue minus all expenses (COGS, operating, taxes).
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Common mistakes

Confusing ROE and ROA.Correct: ROE is return on shareholder equity only. ROA is return on all assets (equity + debt).

Higher D/E always means the company is in trouble.Correct: High leverage can be strategic and profitable if the debt finances growth. Context matters.

Ignoring industry benchmarks.Correct: Compare ratios to industry averages. Tech might have 0.5 D/E; utilities might have 1.5.

Using one ratio to judge a company.Correct: Always analyze multiple ratios together (profitability + liquidity + leverage).

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FAQ

What are the main types of financial ratios?

Profitability (ROE, ROA, margins), liquidity (current, quick), leverage (D/E, interest coverage), and efficiency (asset turnover, receivables days).

How do I calculate ROE?

ROE = Net Income / Shareholder Equity. Measures the profit generated per unit of shareholder capital.

What is a healthy current ratio?

A current ratio of 1.0–2.0 is generally considered healthy, indicating the company can cover short-term obligations without excess liquid assets.

Why is debt-to-equity important?

It shows how much a company relies on debt vs. equity financing. Higher leverage means higher risk but potentially higher returns.

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