Company X is considering changing its capital structure in light of the tough business environment. Currently, Company Xs total capital consists of:

$950 million in debt

$20 million in leased assets

$500 million of preferred stock

$900 million in common stock

$750 million in retained earnings

The debt coupon is 8% and tax rate is 40%, while the current preferred share price is $96.20 and the dividend per share is $9. The company's common stock is trading at $25.50, its dividend payout this year is $1.15, and the growth rate of the dividend is 8.5%. Leases are at an average cost of 8%. Find the weighted average cost of capital given the data above.

If Company X wants to change its capital structure (i.e., lower its WACC), what should it do? Show your calculations in detail and explain your reasoning.