Financial ratios analysis turns the numbers on the financial statements into comparisons you can actually judge. Ratio analysis answers four questions: can the company pay its bills, does it make money, how much debt does it carry, and how efficiently does it use its assets? Students usually find the formulas manageable. The harder part is knowing what the answer means.
The key formulas, by what they measure
Liquidity ratios (can it pay short-term bills?)
- Current ratio = current assets ÷ current liabilities
- Quick ratio = (cash + short-term investments + accounts receivable) ÷ current liabilities
- Working capital = current assets − current liabilities
Profitability ratios (does it make money?)
- Gross profit margin = gross profit ÷ revenue
- Net profit margin = net income ÷ revenue
- Return on assets = net income ÷ average total assets
- Return on equity = net income ÷ average shareholders’ equity
Leverage and coverage ratios (how much debt, and can it handle the interest?)
- Debt-to-equity = total liabilities ÷ total equity
- Times interest earned (a coverage ratio) = earnings before interest and taxes ÷ interest expense
Turnover ratios (how efficiently does it use assets?)
- Inventory turnover = cost of goods sold ÷ average inventory
- Receivables turnover = net credit sales ÷ average accounts receivable
Worked example
A company has current assets of $120,000 (of which $80,000 is cash, receivables, and short-term investments; the rest is inventory), current liabilities of $60,000, revenue of $500,000, net income of $40,000, total liabilities of $90,000, and total equity of $110,000.
Current ratio = 120,000 ÷ 60,000 = 2.0
Quick ratio = 80,000 ÷ 60,000 = 1.33
Working capital = 120,000 − 60,000 = $60,000
Net profit margin = 40,000 ÷ 500,000 = 8%
Debt-to-equity = 90,000 ÷ 110,000 = 0.82
How to interpret a ratio
A ratio means little on its own. It needs something to compare against: the same company’s earlier years, a competitor, or the industry average. A current ratio of 2.0 says the company can cover its short-term obligations twice over, which looks safe. But a ratio that is much higher may mean cash is sitting idle instead of being put to work. The quick ratio leaves out inventory because inventory can be slow to turn into cash, so it’s a stricter test of liquidity.
Common mistakes
Including inventory in the quick ratio. The quick ratio counts only cash, short-term investments, and receivables.
Switching between ending and average balances. Several formulas call for averages. Use whichever method your course specifies, and use it consistently.
Assuming higher is always better. A very high current ratio can signal inefficiency, and a high debt-to-equity ratio isn’t automatically bad. It depends on the industry and the comparison.
If you need financial ratios calculation help on a specific problem set, or you’re building a financial statement analysis project and aren’t sure what to conclude, a tutor can walk through your actual numbers with you.
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