Please help me with the cash flow calculation

Using the information provided, calculate the Cash Flows from Operating for the year ended 30 June 2020 Extract from Income Statement of Green Sheep Ltd for period ending 30 June 2020 Sales 2 502 410 Cost of goods sold 1 920 520 Other expenses 223 712 Less Income tax expense (43 200) Extract from the Balance Sheet of Green Sheep Ltd As at 30 June 2020: 2020 2019 Cash at bank 550 000 450 000 Accounts receivable 90 000 81 000 Inventory 210 000 140 500 Prepaid operating expenses 2 500 600 Accounts payable 130 000 115 000 Accrued expenses 4 500 6 100 Provision for tax 15 000 20 000 Unearned revenue 500 1 000