A dishonest dealer professes to sell goods at the cost price but uses a weight of 780 grams per kg, what is his percent?	Options
A) 28%	B) 25%	C) 55%	D) 28%	E) 28.2%
780 --- 220   100 --- ? =&gt; 28.2%   Answer: 28.2%
<result>E</result>
A dishonest dealer professes to sell goods at the cost price but uses a weight of 780 grams per kg, what is his percent?