Suppose that the only good you purchase is premium bottled water and that at the beginning of the​ year, the price of a bottle is​$2.00. Suppose you lend ​$1000 for one year at an interest rate of 10.4 percent. At the end of the​ year, the price of premium bottled water has risen to ​$2.13
Calculate the real interest rate on the loan. _______%. (Enter your response as a percentage rounded to one decimal​ place.)