What Is Ratio Analysis?
Ratio analysis is a method of evaluating a company by dividing one financial figure by another and interpreting the result. A single number, such as total profit, says little on its own. Set against sales, assets or shareholder funds, it becomes easier to judge how well a business is performing and how it compares with others.
Ratios are usually grouped by the question they answer. Profitability ratios measure how much profit a company keeps from its sales or investment. Liquidity ratios show whether it can meet short-term bills. Leverage ratios reveal how heavily it relies on borrowed money, and efficiency ratios show how well it uses its assets. Valuation ratios relate the share price to earnings or other measures.
How Ratio Analysis Works
Most ratios are simple division using figures from the balance sheet or the income statement. For example, the current ratio is calculated as follows:
Current Ratio = Current Assets / Current Liabilities
A result above 1 generally means a company has more short-term assets than short-term obligations. Ratios become meaningful through comparison: over several periods for the same company, against competitors in the same industry, or against a recognized benchmark. Industries differ widely, so a ratio that is typical for a utility may look weak for a software firm.
Advantages and Limitations
Ratio analysis standardizes figures so that companies of different sizes can be compared on a common basis. It can also highlight trends and warning signs that are hard to see in raw totals.
The method has limits, however:
- Ratios depend on reported figures, which reflect accounting choices that can vary between companies.
- They describe past periods and do not guarantee future results.
- The same ratio name may be calculated differently by different data sources, so definitions should be checked.
- No single ratio tells the full story, so they are best read together and alongside the complete financial statements.
Updated October 29, 2026. For general education only; not financial, tax or legal advice.