The document discusses various debt ratios used to measure a company's use of leverage and risk of default. It defines the debt ratio as total liabilities divided by total assets, showing a company's ability to pay off debt with its assets. The debt to equity ratio compares total debt to total equity to show what percentage of financing comes from creditors versus shareholders. Interpretations of Sun Pharma's ratios over five years are provided, noting that lower debt ratios generally imply less risk and potential for longer-term stability as less assets need to be sold to pay off debt.