Following Are the Income Statement and Other Information for Polk

Following are the income statement and other information for Polk Corporation.
$\begin{array}{c}\text { Polk Corporation}\\\text { Income Statement}\\\text { For the Year Ended December 31, 20xx}\\\begin{array}{|lrr|}\hline\text { Sales } && \$ 6,000 \\\text { Cost of goods sold } && 3,000 \\\text { Gross margin } && \$ 3,000\\\text { Operating expenses } & \$ 1,200 \\\text { Depreciation expense } &\underline{ 600 }&\underline{1,800}\\\text {Income before income taxes}&&\$1,200\\\text { Income taxes expense}&&\underline{300}\\\text { Net income}&&\underline{\$900}\\\hline\end{array}\end{array}$ Accounts receivable (net)decreased by $1,500 during the year.Inventory increased by $900,and Accounts Payable decreased by $1,200 during the year.Income Taxes Payable increased by $300 during the year.
Prepare a schedule of cash flows from operating activities using the indirect method.