Kozhin planning to invest in ABC companys share, but she is not sure whether she should buy preferred stock or common stock.

Preferred stock is currently trading at $90 per share and has 9% dividend annually (on $100 par value) while common stock currently trading at $80 per share and just paid dividend of $5, and dividend expect grow at 3% rate for foreseeable future.

What rate of return Kozhin will get if she invest in preferred stock and common stock?