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. Caicutate the ehange 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. Catculate the cash flow from assets Note: A negative answer should be indicated by a minus sign. Do not round intermediate calculations and round your 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. Calcutate the cash flow to stockholders Note: A negative answer should be indicated by a minus sign. Do not round intermediate calculations and round your answer to the nearest whole number, e.g., 32