Henry professes to sell his goods at the cost price but he made use of 750 grams instead of a kg, what is the gain percent?  Choose the correct choice from the following options:
A) 12 1/3% B) 13 1/3% C) 14 1/3% D) 15 1/3% E) 16 1/3%
750 --- 100   100 --- ? =&gt; 13 1/3%   Answer:13 1/3%
<result>B</result>
Henry professes to sell his goods at the cost price but he made use of 750 grams instead of a kg, what is the gain percent?