Please first calculate the cash flow for operating activities, and then mention what kind of extra information is needed

b) Calculate the cash flow for the operating activities from the balance sheet below and some extra information which kind of extra information do you need for making the calculation: December 31, Increase 20x6 BALANCE 20x5 (Decrease) Current cash Cash and cash eguivalens 17.000 4.000 60.000 50.000 10.000 Accounts receivable Inventories 70.000 60.000 000 2.000 Prepaid expenses 2.000 4.000 Land 70.000 4.000 66.000 Equitment, net 75.000 50.000 25.000 294.000 172.000 122.000 Total Assets Current liabilities: 48.100 Accounts payable 75.000 26.900 24.000 13.500 10.500 Salaries payable Other accrued liabilities -1.700 22.000 23.700 Long-term liabilities: Notes payable 51.000 34.000 17.000 Shareholder' equity: Share Capital, no-par 94.000 65.900 20.000 Retained earnings 28.000 8.000 294.000 172.000 122.000 Total Liabilies and equity