Robert's salary was decreased by 40% and subsequently increased by 40%. how much percentage does he lose? Choose one.
A) 16%	B) 20%	C) 25%	D) 30%	E) 50%
let original salary be $100   Salary after decreasing 40% = 100 - 100 x 40/100 = $60   Salary after increasing 40% on $60 = 60 + 60 x 40/100 = $84   Percentage of loss = 100 - 84= 
<gadget id="calculator">100 - 84</gadget>
<output>16</output>
16%   16%nswer : 16%
<result>A</result>
Robert's salary was decreased by 40% and subsequently increased by 40%. how much percentage does he lose?