Ram professes to sell his goods at the cost price but he made use of 900 grms instead of a kg, what is the gain percent?	Choose the correct choice from the following answers:
A) 11 1/5%  B) 11 1/4%  C) 11 1/9%  D) 11 8/9%  E) 11 3/9%
900 --- 100   100 --- ? =&gt; 11 1/9%   Answer: 11 1/9%
<result>C</result>
Ram professes to sell his goods at the cost price but he made use of 900 grms instead of a kg, what is the gain percent?