In a certain store, the profit is 320% of the cost. If the cost increases by 25% but the selling price remains constant, approximately what percentage of the selling price is the profit?  Choices.
A) 30%	B) 40%	C) 70%	D) 80%	E) 90%
C   70%   Let C.P. = $ 100. Then, profit = $ 320, S.P. = $ 420   New C.P. = 125% of $ 100 = $ 125.   New S.P. = $ 420   Profit = 420 - 125= 
<gadget id="calculator">420 - 125</gadget>
<output>295</output>
$ 295   Required percentage= 295/420 * 100 = 1475/21 = 70%
<result>C</result>
In a certain store, the profit is 320% of the cost. If the cost increases by 25% but the selling price remains constant, approximately what percentage of the selling price is the profit?