The 2020 balance sheet of Osaka's Tennis Shop, Incorporated, showed long-term debt of $6 million, and the 2021 balance sheet showed long-term debt of $6.4 million. The 2021 income statement showed an interest expense of $160,000. What was the firm's cash flow to creditors during 2021? (A negative answer should be indicated by a minus sign. Enter your answer in dollars, not millions of dollars, e.g., 1,234,567.)