A dishonest dealer professes to sell goods at the cost price but uses a weight of 950 grams per kg, what is his percent?	Choose the correct choice:
A) 22 %
B) 25 %
C) 77 %
D) 5.26 %
E) 12 %

Rationale: 950 - - - 50 100 - - - ? = > 5.26 % answer : d
Answer: D