An investor offers you $827,906 in exchange for shares of your start-up company. The investor demands an annual rate of return of 64%, and expect that your IPO will be in 5 years. At that time you expect your firm to have annual income of around $1,816,029 dollars. A similar firm was recently acquired for $18,314,860 dollars. At the time of acquisition, their income was $1,946,601 million dollars per year. What percentage of your equity should you give to the investor? Enter your answer as a percentage, without decimals.