The following table tracks the main components of working capital over the life of a four-year project. Accounts receivable Inventory Accounts payable 2019 0 95,000 35,000 2020 190,000 150,000 60,000 2021 265,000 150,000 70,000 2022 230,000 115,000 45,000 2023 0 0 0 Calculate net working capital and the cash inflows and outflows due to investment in working capital. (Negative answers should be indicated by a minus sign.) 2019 2020 2021 2022 2023 Net working capital Cash flows