Martinez Corp. reported net cash provided by operating activities of $428,480, net cash used by investing activities of $260,000, and net cash provided by financing activities of $72,800. In addition, cash spent for capital assets during the period was $208,000. No dividends were paid. Calculate free cash flow. (Show a negative free cash flow with either a-sign eg.-15,000 or in parenthesis e.g. (15,000).) Free cash flow $