The following important State of Income Ratios measure profitability:

Gross Margin Ratio

This ratio is the percentage of sales dollars left after subtracting the cost of goods sold from net sales. It measures the percentage of sales dollars remaining (after obtaining or manufacturing the goods sold) available to pay the overhead expenses of the company.

Comparison of your business ratios to those of similar businesses will reveal the relative strengths or weaknesses in your business. The Gross Margin Ratio is calculated as follows:

                                    Gross Profit
Gross Margin Ratio = _______________
                                     Net Sales

(Gross Profit = Net Sales - Cost of Goods Sold)

Net Profit Margin Ratio

This ratio is the percentage of sales dollars left after subtracting the Cost of Goods sold and all expenses, except income taxes. It provides a good opportunity to compare your company's "return on sales" with the performance of other companies in your industry. It is calculated before income tax because tax rates and tax liabilities vary from company to company for a wide variety of reasons, making comparisons after taxes much more difficult. The Net Profit Margin Ratio is calculated as follows:

                                        Net Profit Before Tax
Net Profit Margin Ratio = _____________________
                                              Net Sales

Management Ratios

Other important ratios, often referred to as Management Ratios, are also derived from Balance Sheet and Statement of Income information.

Inventory Turnover Ratio

This ratio reveals how well inventory is being managed. It is important because the more times inventory can be turned in a given operating cycle, the greater the profit. The Inventory Turnover Ratio is calculated as follows:

                                                        Net Sales
Inventory Turnover Ratio = ___________________________
                                          Average Inventory at Cost

Accounts Receivable Turnover Ratio

This ratio indicates how well accounts receivable are being collected. If receivables are not collected reasonably in accordance with their terms, management should rethink its collection policy. If receivables are excessively slow in being converted to cash, liquidity could be severely impaired. The Accounts Receivable Turnover Ratio is calculated as follows:

Net Credit Sales/Year
__________________ = Daily Credit Sales
365 Days/Year

                                                                  Accounts Receivable
Accounts Receivable Turnover (in days) = _________________________
                                                                   Daily Credit Sales

Return on Assets Ratio

This measures how efficiently profits are being generated from the assets employed in the business when compared with the ratios of firms in a similar business. A low ratio in comparison with industry averages indicates an inefficient use of business assets. The Return on Assets Ratio is calculated as follows:

                                   Net Profit Before Tax
Return on Assets = ________________________
                                     Total Assets

Return on Investment (ROI) Ratio.

The ROI is perhaps the most important ratio of all. It is the percentage of return on funds invested in the business by its owners. In short, this ratio tells the owner whether or not all the effort put into the business has been worthwhile. If the ROI is less than the rate of return on an alternative, risk-free investment such as a bank savings account, the owner may be wiser to sell the company, put the money in such a savings instrument, and avoid the daily struggles of small business management. The ROI is calculated as follows:

                                      Net Profit before Tax
Return on Investment = ____________________
                                           Net Worth