Suppose Canwest Global Communications Corp.reported net cash used by operating activities of $127,537,580 and sales revenue of $3,498,299,980 during 2022. Cash spent on plant asset additions during the year was $96,782,600. No dividends were paid. Calculate free cash flow. (Show a negative free cash flow with either a - sign e.g. -15,000 or in parenthesis e.g. (15,000).) a- Free cash flow