Locate the annual statements (called 10-K forms) for Rouche Diagnostics, Annual statements will often include commentary explaining recent financial challenges and plans for the future. Search Rouche Diagnostics for Operating Performance for a list of ratios for previous years. Using the sustainable growth equation, calculate Rouche Diagnostics' sustainable growth rate for at least the past three years. Compare the calculated sustainable growth rate to the companys actual growth rate in sales during this period