Make Better Decisions with a One-Stop Guide to Financial Ratios
The Financial Ratio Primer is a practical reference guide for executives, investors, consultants, and analysts who need to interpret financial statements quickly and accurately. It provides clear explanations of the most widely used liquidity, leverage, profitability, return, efficiency, and valuation ratios—showing not just how each metric is calculated, but what it actually reveals about a company’s financial health, risk profile, and performance. Rather than treating ratios as isolated numbers, the Primer emphasizes how they work together to tell a coherent financial story.
Organized by major analytical themes, the book walks readers through short-term solvency, capital structure and coverage, margins and returns, working capital efficiency, and market valuation. It highlights common pitfalls, trade-offs, and contextual considerations—such as industry differences, growth stages, and accounting distortions—that can lead to misinterpretation. The result is a concise, practical toolkit that helps readers move beyond formula memorization to make better judgments about liquidity, leverage, profitability, and value.
Table of Contents
A. Liquidity Ratios
A.1 Current ratio – Measures a company’s ability to meet short-term obligations using all current assets (current assets ÷ current liabilities).
A.2 Quick ratio – A stricter liquidity metric that excludes inventory to show how easily a company can cover near-term liabilities with its most liquid assets.
A.3 Cash ratio – Assesses the company’s ability to pay current liabilities using only cash and cash equivalents.
A.4 Net working capital – Indicates the excess of current assets over current liabilities, showing the buffer available to fund operations.
A.5 Operating cash flow to current liabilities – Compares cash generated from operations to current liabilities to gauge how well operating cash covers near-term obligations.
A.6 Short-term debt-to-total debt – Shows what proportion of total debt is due within the next year, highlighting refinancing and near-term repayment risk.
A.7 Current liabilities-to-total assets – Indicates how much of the asset base is financed by obligations due within one year, signaling reliance on short-term funding.
B. Leverage & Coverage Ratios
B.1 Debt-to-equity ratio – Shows the proportion of a company’s financing that comes from debt versus shareholders’ equity.
B.2 Debt-to-capital ratio – Measures the percentage of total capital (debt plus equity) that is financed by debt.
B.3 Net debt-to-EBITDA – Compares net debt to EBITDA to indicate how many years of current earnings it would take to repay debt, assuming constant EBITDA.
B.4 Total debt-to-EBITDA – Uses total debt instead of net debt to assess overall leverage relative to earnings.
B.5 Interest coverage ratio (EBIT/interest) – Indicates how many times a company’s operating earnings cover its interest expense.
B.6 Fixed-charge coverage ratio – Measures the ability to cover fixed financial obligations (interest, lease payments, etc.) with operating income.
B.7 Debt service coverage ratio (DSCR) – Compares cash available for debt service to total debt service (interest plus principal), showing repayment capacity.
B.8 Debt-to-assets ratio – Shows what proportion of a company’s total assets is financed by interest-bearing debt.
B.9 Long-term debt-to-capitalization ratio – Measures the share of permanent capital (long-term debt plus equity) funded by long-term debt.
B.10 Equity multiplier – Calculates total assets relative to equity (assets ÷ equity), capturing the degree of balance-sheet leverage.
B.11 Cash flow to total debt – Compares operating cash flow to total debt to assess how quickly debt could be repaid from ongoing cash generation.
B.12 EBITDA-to-interest coverage – Uses EBITDA instead of EBIT in the coverage ratio to reflect the capacity of pre-depreciation earnings to service interest.
B.13 Net debt-to-capital – Measures net debt as a share of net debt plus equity, focusing on leverage after accounting for excess cash.
C. Profitability & Margin Ratios
C.1 Gross profit margin – Shows the percentage of revenue remaining after deducting cost of goods sold, indicating basic product or service profitability.
C.2 Operating margin – Measures the share of revenue left after operating expenses, reflecting core business profitability before interest and taxes.
C.3 EBITDA margin – Expresses EBITDA as a percentage of revenue to gauge operating performance before non-cash charges and financing items.
C.4 Net profit margin – Indicates the percentage of revenue that ultimately flows through to net income after all expenses and taxes.
C.5 Pre-tax profit margin – Shows the percentage of revenue remaining after all operating and non-operating expenses but before taxes.
C.6 EBIT margin – Measures earnings before interest and taxes as a percentage of revenue, focusing on operating performance including depreciation and amortization.
C.7 Cash flow margin – Expresses operating cash flow as a percentage of revenue, indicating how effectively sales are converted into cash.
C.8 Contribution margin – Shows the portion of revenue remaining after variable costs that is available to cover fixed costs and profit (per unit or as a percentage).
C.9 Operating expense ratio – Measures operating expenses (e.g., SG&A) as a percentage of revenue, highlighting cost efficiency in overhead and support functions.
D. Return & Performance Ratios
D.1 Return on equity (ROE) – Measures the return generated on shareholders’ equity, indicating how effectively equity capital is being used.
D.2 Return on assets (ROA) – Shows how efficiently management uses total assets to generate net income.
D.3 Return on invested capital (ROIC) – Assesses the after-tax return generated on the capital invested by both debt and equity holders.
D.4 Return on capital employed (ROCE) – Measures operating profit relative to capital employed, indicating how well long-term capital is being deployed.
D.5 Earnings per share (EPS) – Shows the amount of net income attributable to each outstanding share of common stock.
D.6 Return on tangible equity (ROTE) – Measures net income relative to tangible common equity (excluding goodwill and intangibles), focusing on returns on hard capital.
D.7 Cash return on invested capital (CROIC) – Compares free cash flow to invested capital, showing the cash return generated on funds put into the business.
D.8 Cash return on assets (CROA) – Measures operating cash flow relative to total assets, indicating how efficiently assets generate cash rather than accounting earnings.
D.9 Total shareholder return (TSR) – Captures the total percentage return to shareholders over a period, including share price appreciation plus reinvested dividends.
E. Efficiency & Working Capital Ratios
E.1 Asset turnover – Indicates how efficiently a company uses its asset base to generate revenue (sales ÷ total assets).
E.2 Inventory turnover – Measures how many times inventory is sold and replaced over a period, indicating inventory management efficiency.
E.3 Receivables turnover – Shows how quickly a company collects cash from customers, based on credit sales and average receivables.
E.4 Payables turnover – Indicates how quickly a company pays its suppliers, based on purchases and average payables.
E.5 Days sales outstanding (DSO) – Converts receivables turnover into days to show the average collection period for credit sales.
E.6 Days inventory outstanding (DIO) – Shows the average number of days inventory is held before being sold.
E.7 Days payables outstanding (DPO) – Measures the average number of days the company takes to pay its suppliers.
E.8 Cash conversion cycle (CCC) – Combines DSO, DIO, and DPO to show the net number of days cash is tied up in working capital.
E.9 Fixed asset turnover – Measures how efficiently property, plant, and equipment are used to generate revenue (sales ÷ net fixed assets).
E.10 Working capital turnover – Shows how efficiently net working capital is used to support sales (revenue ÷ average net working capital).
E.11 Capital employed turnover – Measures revenue relative to capital employed, indicating how effectively the capital base is used to drive top-line growth.
E.12 Operating cycle (days) – Sums DSO and DIO to show the average number of days from purchasing inventory to collecting cash from customers.
F. Valuation & Market Ratios
F.1 Price-to-earnings ratio (P/E) – Compares the company’s share price to its earnings per share, reflecting how much investors pay for a dollar of earnings.
F.2 Price-to-book ratio (P/B) – Compares the market value of equity to its book value, indicating how investors value the company relative to its net assets.
F.3 Price-to-sales ratio (P/S) – Relates market capitalization to revenue, useful for valuing low-earnings or early-stage companies.
F.4 Enterprise value to EBITDA (EV/EBITDA) – Compares enterprise value to EBITDA, widely used to value companies on a capital-structure-neutral basis.
F.5 Enterprise value to EBIT (EV/EBIT) – Uses EBIT instead of EBITDA to value companies including the impact of depreciation and amortization.
F.6 Enterprise value to sales (EV/Sales) – Compares enterprise value to revenue, often used for high-growth or low-margin businesses.
F.7 Dividend yield – Measures annual dividends per share as a percentage of the current share price, indicating cash income relative to investment.
F.8 Dividend payout ratio – Shows what proportion of earnings is distributed as dividends, indicating how much profit is returned to shareholders versus retained.
F.9 Free cash flow yield – Compares free cash flow to the company’s equity value or market capitalization, showing cash return generated by the business.
F.10 Price-to-free-cash-flow ratio (P/FCF) – Compares share price to free cash flow per share, valuing the company based on its cash generation rather than accounting earnings.
