You've collected the following information from your favorite financial website. According to your research, the growth rate in dividends for DR Dime for the previous 10 years has been -10 percent. Required: If investors feel this growth rate will continue, what is the required return for DR Dime stock? (Do not round intermediate calculations. Negative amount should be indicated by a minussign. Round your answer to 2 decimal places (e.g., 32.16).)