A firm produces one output in a quantity y using three inputs with quantities x 1

,x 2

and x 3

. The production function of this firm is determined by y:(R +
) 3
→R : (x 1

,x 2

,x 3

)↦y(x 1

,x 2

,x 3

)=3 4
x 1

x 2
2

x 3


. Management considers increasing the current levels of inputs x 1

and x 2

by 1%. What is the impact of this decision on the input level of x 3

if the output level must remain the same?