A cricket bat is sold for $850, making a profit of $215. The profit percentage would be  Pick
A) 24 %  B) 25 %  C) 34 %  D) 36 %  E) 40 %

Rationale: "215 / ( 850 - 215 ) = 215 / 635 = 43 / 127 = 34 % . answer : c ."
Answer: C