The most recent financial statements for crosby, inc., follow. sales for 2018 are projected to grow by 30 percent. interest expense will remain constant; the tax rate and the dividend payout rate will also remain constant. costs, other expenses, current assets, fixed assets, and accounts payable increase spontaneously with sales crosby, inc 2017 income statement sales costs other expenses $768,000 624,000 31,500 earnings before interest and taxes interest paid $112,500 16,000 taxable income taxes (25%) $ 96,500 24,125 net income $ 72,375 dividends addition to retained earnings $22,740 49,635 crosby, inc balance sheet as of december 31, 2017 assets liabilities and owners' equity current assets current liabilities cash accounts receivable $ 25,740 accounts payable $63,400 35,210 notes payable 19,100 $82,500 $116,000 inventory 71,870 total total $132,820 long-term debt owners' equity common stock and paid-in surplus retained earnings fixed assets $115,000 $225,000 44,320 $159,320 $357,820 net plant and equipment total total assets $357,820 total liabilities and owners' equity what is the efn if the firm wishes to keep its debt-equity ratio constant?