Arvo Corporation is trying to choose between three alternative investments. The three securities that the company is considering are as follows:
- Tax-free municipal bonds with a return of 8.8%.
- Wooli Corporation bonds with a return of 11.75%.
- CFI Corp. preferred stock with a return of 9.8%.
The company's tax rate is 16.00%. What is the after-tax return on the best investment alternative? Assume a 70% dividend exclusion for tax on dividends. (Round your final answer to 3 decimal places.)