Ratio analysis is one of the techniques of financial analysis to evaluate the financial condition and performance of a business concern. Simply, ratio means the comparison of one figure to other relevant figure or figures.

According to Myers, " Ratio analysis of financial statements is a study of relationship among various financial factors in a business as disclosed by a single set of statements and a study of trend of these factors as shown in a series of statements."

There are various groups of people who are interested in analysis of financial position of a company. They use the ratio analysis to workout a particular financial characteristic of the company in which they are interested. Ratio analysis helps the various groups in the following manner: -

1. To workout the profitability: Accounting ratio help to measure the profitability of the business by calculating the various profitability ratios. It helps the management to know about the earning capacity of the business concern. In this way profitability ratios show the actual performance of the business.
2. To workout the solvency: With the help of solvency ratios, solvency of the company can be measured. These ratios show the relationship between the liabilities and assets. In case external liabilities are more than that of the assets of the company, it shows the unsound position of the business. In this case the business has to make it possible to repay its loans.
3. Helpful in analysis of financial statement: Ratio analysis help the outsiders just like creditors, shareholders, debenture-holders, bankers to know about the profitability and ability of the company to pay them interest and dividend etc.
4. Helpful in comparative analysis of the performance: With the help of ratio analysis a company may have comparative study of its performance to the previous years. In this way company comes to know about its weak point and be able to improve them.
5. To simplify the accounting information: Accounting ratios are very useful as they briefly summarise the result of detailed and complicated computations.
6. To workout the operating efficiency: Ratio analysis helps to workout the operating efficiency of the company with the help of various turnover ratios. All turnover ratios are worked out to evaluate the performance of the business in utilising the resources.
7. To workout short-term financial position: Ratio analysis helps to workout the short-term financial position of the company with the help of liquidity ratios. In case short-term financial position is not healthy efforts are made to improve it.
8. Helpful for forecasting purposes: Accounting ratios indicate the trend of the business. The trend is useful for estimating future. With the help of previous years’ ratios, estimates for future can be made. In this way these ratios provide the basis for preparing budgets and also determine future line of action.

In spite of many advantages, there are certain limitations of the ratio analysis techniques and they should be kept in mind while using them in interpreting financial statements. The following are the main limitations of accounting ratios:

1. Limited Comparability: Different firms apply different accounting policies. Therefore the ratio of one firm can not always be compared with the ratio of other firm. Some firms may value the closing stock on LIFO basis while some other firms may value on FIFO basis. Similarly there may be difference in providing depreciation of fixed assets or certain of provision for doubtful debts etc.
2. False Results: Accounting ratios are based on data drawn from accounting records. In case that data is correct, then only the ratios will be correct. For example, valuation of stock is based on very high price, the profits of the concern will be inflated and it will indicate a wrong financial position. The data therefore must be absolutely correct.
3. Effect of Price Level Changes: Price level changes often make the comparison of figures difficult over a period of time. Changes in price affects the cost of production, sales and also the value of assets. Therefore, it is necessary to make proper adjustment for price-level changes before any comparison.
4. Qualitative factors are ignored: Ratio analysis is a technique of quantitative analysis and thus, ignores qualitative factors, which may be important in decision making. For example, average collection period may be equal to standard credit period, but some debtors may be in the list of doubtful debts, which is not disclosed by ratio analysis.
5. Effect of window-dressing: In order to cover up their bad financial position some companies resort to window dressing. They may record the accounting data according to the convenience to show the financial position of the company in a better way.
6. Costly Technique: Ratio analysis is a costly technique and can be used by big business houses. Small business units are not able to afford it.
7. Misleading Results: In the absence of absolute data, the result may be misleading. For example, the gross profit of two firms is 25%. Whereas the profit earned by one is just Rs. 5,000 and sales are Rs. 20,000 and profit earned by the other one is Rs. 10,00,000 and sales are Rs. 40,00,000. Even the profitability of the two firms is same but the magnitude of their business is quite different.
8. Absence of standard university accepted terminology: There are no standard ratios, which are universally accepted for comparison purposes. As such, the significance of ratio analysis technique is reduced.