The price of an item changed from $120 to $100. Then later the price decreased again from $100 to $80. Which of the two decreases was larger in percentage term? Choose the correct option.
A) 10%	B) 20%	C) 30%	D) 40%	E) 50%
First decrease in percent   part / whole = (120 - 100) / 120 = 0.17 = 17%   Second decrease in percent   part / whole = (100 - 80) / 100= 
<gadget id="calculator">(100 - 80) / 100</gadget>
<output>1/5 = around 0.2</output>
0.20= 20%   The second decrease was larger in percent term. The part were the same in both cases but the whole was smaller in the second decrease.   Answer 20%
<result>B</result>
The price of an item changed from $120 to $100. Then later the price decreased again from $100 to $80. Which of the two decreases was larger in percentage term?