$($Circle the answer between the two choices $-$ increase of decrease $-$ and write the rate.$)$ Assuming that the average duration of its assets is four years, while the average duration of its liabilities is seven years, then a $2\mathrm{.}5$ percentage point decrease in interest rates will casse the profit of Firnt National Bank to $($increase $,$ decrease$)$ by percest of the total origienl asset value.