Given that the silicon is 92 pure calculate the theoretical

Question

In the first step of silicon purification, a reaction is brought about between the impure silicon and chlorine. Pure silicon is then used, in the computer industry, for the manufacture of microchips. 

Si + Cl₂ à SiCl₄ (unbalanced equation)

Given that the silicon is 92% pure, calculate the theoretical yield percentage if 1.0 t of impure silicon produces 2.33 t of silicon (IV) chloride.