2. A firm has grown at 15 per cent in the past few years. Its after-tax ROI and after-tax interest rate have been, respectively, 16 per cent and 7 per cent. It now has a target growth rate of 18 per cent. The company expects its profitability and interest cost to remain constant and maintain its payout ratio at 60 per cent. How can the firm achieve its target growth? Show calculations.