Help Seve Problem 1-7 Calculating the Future Value of a Series of Amounts (L01-4) Elaine Romberg prepares her own income tax return each year. A tax preparer would charge her $80 for this service. Over a period of 10 years, how much does Elaine gain from preparing her own tax return? Assume she can earn a percent on her savings. Use Exhibiti B. (Round time value foctor to 3 decimal places and final answer to 2 decimal places.) Future value of total gain