these are small questions please answer both and I will leave a good review

Calculate the after-tax cash flow from operations: Net sales =$3,575 Cost of goods sold =$1,314 Operating expenses =$544 Depreciation =$350 Tax rate =39% A firm has sales-to-assets ratio of 0.7, debts-to-sales ratio of 0.6, profit margin of 25%, and dividend payout ratio of 0.5. If the current sales is $22,167 and is expected to increase 18% next year, what is its external funds needed