Willard Windows has total sales of $$200,000$ on total assets of $$250,000,$ current liabilities of $$50,000,$ and $$20,000$ of dividends paid on net income of $$40,000.$ Assume that all costs, assets, and current liabilities change spontaneously with sales. The tax rate and dividend payout ratios remain constant. The firm's managers project a firm growth rate of $15$ percent for next year. Assume the firm is currently operating at full capacity. How much is the external financing needed $($EFN$)$ for Willard Windows to support the $15\%$ growth in sales?

$$7,000$

$$8,500$

$$9,000$

$$9,500$

$$10,000$