The Gross National Product (GNP) of a Certain Country Is $N ( t ) = t ^ { 2 } + 3 t + 121$

Short Answer

The gross national product (GNP) of a certain country is $N ( t ) = t ^ { 2 } + 3 t + 121$ billion dollars where t is the number of years after 1990. At what percentage rate will the GNP be changing with respect to time in 1995? Round your answer to one hundredth of a percent, if necessary.