Answer and Explanation:
The preparation of the operating activities is presented below:
cash flow from operating activities
Net income $397,000
Add: Depreciation expense $49,200
Add: Amortization expense $7,500
Add: Accounts receivable decrease $142,900
Less: Gain on sale of plant asset -$6,600
Add: Inventory decrease $48,500
less: Prepaid expenses increase -$4,800
Less: Accounts payable decrease -$9,400
Add: Salaries payable increase $1,600
net cash flow from operating activities $625,900