Please explain how to get to the answer. The answer is .40024%

5) Money is invested in a savings account with a nominal interest rate o f 2.4% convertible monthly for three years. The rate of inflation is 1.5% for the first year, 2.8% for the second year, and 3.4% for the third year. Find the percentage of purchasing power lost during the time the money is invested; that is, p so that if you could purchase exactly u units at the ti invested, three years later you could purchase u (1-01p). find me the money was