Penguin Industries, Inc., has a capital structure that currently consists of 40 per- cent debt and 60 percent common stock, which it considers optimal. Penguin can raise up to $60 million in long-term debt at a pretax cost of 10 percent. Above $60 million, the pretax cost of debt is expected to increase to 14 percent. The company's marginal tax rate is 40 percent. Its stock currently sells for $60 per share and has a beta of 1.20. The company is expected to pay a $3.60 per share dividend next year, which is expected to grow at a rate of 6 per- cent per year for the foreseeable future. Penguin expects to generate $180 million in retained earnings during the coming year. New shares can be sold to net the company $56 per share. Determine the marginal cost of capital schedule and the break points in the schedule for Penguin.