Zigs Industries had the following operating results for 2011: sales = $28,560; cost of goods sold = $19,460; depreciation expense = $5,020; interest expense = $2,340; dividends paid = $1,150. At the beginning of the year, net fixed assets were $16,980, current assets were $5,800, and current liabilities were $3,280. At the end of the year, net fixed assets were $20,360, current assets were $7,360, and current liabilities were $3,900. The tax rate for 2011 was 30 percent. need to calculate NI, OCF, capital spending, change in net spending capital and cash flow from assets