In 2018, a company had depreciation expense of $500 and interest expense of $250. Dividends paid during the year were $475 and the addition to retained earnings for the year was $425. At the beginning of the year, long-term debt was $4,500 and owner's equity was $16,500. At the end of the year, long-term debt was $4,000 and owner's equity was $16,000. What is the cash flow to creditors for 2018?