Respuesta :

8.3% is ur answer hope this helps 
40% 
because...
100%/x%=960/384
(100/x)*x=(960/384)*x       - we multiply both sides of the equation by x
100=2.5*x       - we divide both sides of the equation by (2.5) to get x
100/2.5=x 
40=x 
x=40