Assume the firm has a constant dividend payout ratio and a projected sales increase of 12 percent. All costs, assets, and current liabilities vary directly with sales. The firm is currently at full production. What is the external financing need? Currently, the firms sales =$4,700, net income is $420, total assets=7890, dividends=125, A/P =790, LTD= 3130, and common stock=2780, and retained earnings =1190. $146.00 $251.20 $470.40 $521.60