Accounting please help

Information related to various financial statement elements is provided for two cases: Case A Operating expenses were $580,000. Inventory increased by $83,200, accounts payable increased by $58,000, and prepaid rent decreased by $18,400. Case B Sales revenue was $1,552,400. Accounts receivable decreased by $86,200 and unearned revenue increased by $53,200 during the year. Required: For each case, calculate the cash inflow or outflow related to the revenue or expense account. (List any cash outflow with minus sign.) Cash Flow Case A Case B