Graffiti Advertising, Incorporated, reported the following financial statements for the last two years. a. Calculate the operating cash flow. Note: Do not round intermediate calculations and round your answer to the nearest whole number, e.g., 32. b. Calculate the change in net working capital. Note: Do not round intermediate calculations and round your answer to the nearest whole number, e.g., 32. c. Calculate the net capital spending. Note: Do not round intermediate calculations and round your answer to the nearest whole number, e.g., 32. d. Calculate the cash flow from assets. Note: A negative answer should be indicated by a minus sign. Do not round intermediate calculations and round you answer to the nearest whole number, e.g., 32. e. Calculate the cash flow to creditors. Note: Do not round intermediate calculations and round your answer to the nearest whole number, e.g., 32. f. Calculate the cash flow to stockholders. Note: A negative answer should be indicated by a minus sign. Do not round intermediate calculations and round you answer to the nearest whole number, e.g., 32