The correct answer is -790 please explain step by step

Fed 0/1 pts Question 2 The Mayfield Company reported an overall decrease in cash of $480 on its statement of cash flows. If it also reported a positive cash flow of $620 for operating activities and a negative cash flow of $310 for investing actvities, what were its cash flows for financing activities? Use a positive number to indicate a cash inflow or a negative number to indicate a cash outflow. ered swers -790 (with margin: 0)