You decide to sell short $200$ shares of Charlotte Horse Farms when it is selling at its yearly high of $$50.$ Your broker tells you that your margin requirement is $55$ percent and that the commission on the purchase is $$280.$ While you are short the stock, Charlotte pays a $$2\mathrm{.}10$ per share dividend. At the end of one year, you buy $200$ shares of Charlotte at $$41$ to close out your position and are charged a commission of $$275$ and $12$ percent interest on the money borrowed. What is your rate of return on the investment? Do not round intermediate calculations. Round your answer to two decimal places.

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