Free cash flow (FCF) represents the cash that a company is able to generate after laying out the money required to maintain or expand its asset base. Free cash flow is important because it allows a company to pursue opportunities that enhance shareholder value.

The coverage ratio compares a company's operating cash flow to its total debt, which, for purposes of this ratio, is defined as the sum of short-term borrowings, the current portion of long-term debt and long-term debt. This ratio provides an indication of a company's ability to cover total debt with its yearly cash flow from operations. The higher the percentage ratio, the better the company's ability to carry its total debt.

Formula:
Cash Flow to Debt ratio = Operating cash flow/ Total debt