# How to Calculate Sustainable Rate of Growth

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Companies often experience growth, which is generally good for a company. However, a company must be able to grow at a rate that is feasible. If a company does not grow at a feasible rate, the company can see a decrease in value. A feasible growth rate is determined by calculating a firm's sustainable rate of growth. Management uses this figure to figure out how fast is too fast.

Determine the company's earnings retention rate. Earnings retention rate equals earnings after dividends divided by earnings. These numbers are available on a company's income statement. For example, Firm A had earnings of \$1,000,000 and paid \$100,000 in dividends. The earnings retention rate equals \$900,000 divided by \$1,000,000, which equals 0.9.

Determine the company's return on equity. Return on equity equals earnings divided by beginning shareholders' equity. Shareholders' equity is available on the company's balance sheet. For example, Firm A had a beginning shareholders' equity of \$6,000,000. Therefore, \$1,000,000 divided by \$600,000 equals a return on equity of 0.167.

Multiply the earnings retention rate by return on equity to determine the sustainable rate of growth. In the example, 0.9 times 0.167 equals 0.1503, or Firm A can grow at 15.03 percent.

#### About the Author

Carter McBride started writing in 2007 with CMBA's IP section. He has written for Bureau of National Affairs, Inc and various websites. He received a CALI Award for The Actual Impact of MasterCard's Initial Public Offering in 2008. McBride is an attorney with a Juris Doctor from Case Western Reserve University and a Master of Science in accounting from the University of Connecticut.