Biotec has estimated the costs of debt and equity for various proportions of debt in its capital structure:

% Of the debt	cost of debt	cost of equity
35	5,4%	13,8%
40	5.6	14.0
45	5.9	14.3
50	6.4	14.7

If Biotec pays a current dividend of $1.00 and expects the dividend to grow at a constant rate of 7%, what is Biotec's stock price given its optimal capital structure?