Passage
Directions: Study the given table carefully and answer the question that follows. Names of the Books Cost Price (in Rs.) Selling Price (In Rs.) Profit % Loss % Profit (In Rs.) Loss (In Rs.) A __ __ __ 20 __ __ B 1500 __ __ __ __ __ C 1200 __ __ __ __ __ D __ 1830 __ 40 __ __ E 2500 __ __ __ 300 __
If the profit of C is 12%, then the difference between selling price of C and E is approximately what percent of the cost price of D?