The 2017 balance sheet of Kerber's Tennis Shop, Inc., showed $3 million in long-term debt, $770,000 in the common stock account, and $6.35 million in the additional paid-in surplus account. The 2018 balance sheet showed $4.1 million, $905,000, and $7.7 million in the same three accounts, respectively. The 2018 income statement showed an interest expense of $180,000. The company paid out $520,000 in cash dividends during 2018. If the firm's net capital spending for 2018 was $670,000, and the rm reduced its net working capital investment by $185,000, what was the firm's 2018 operating cash flow, or OCF