Hi I don't know why answer is 10 percent

First National Bank Assets Liabilitiies $50 million $50 million ariable-rate $20 million Fixed-rate $80 million ssuming that the average duration of its assets is five years, while the average duration of its liabilities is three years, then a 5 percentage point increase in interest rates will cause the net worth of First National to decline by approximately..of the total original asset value. 25 percent 5 percent You Answered 15 percent orrect Answer 10 percent