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Exercise 5 Calculation of Real Interest Rate In September, the nominal interest rate on the one-year Treasury bill was 0.35 percent. From September 2015 to September 2016, the consumer price index rose from 237.5 to 241.0. If you bought the one-year Treasury bill in September 2015, the interest rate you earned over the following 12-month period was (Enter your answer rounded to two decimal places and include a minus sign if necessary.) C2 41.0-237.5)/ (237.5) .100 201b 2015) (2015) Inflation Rate Nominal Imerest Rote -Inflation Rate 141/, 47y -14