A house sold for $500,000 in 1990 and sold ten years later for $400,000. By what percent did the value of the house change?  Choose the correct answer:  A) 20%  B) 0%  C) -10%  D) -20%  E) -25%
% Change= (F-I)/I x100, where F is the final value and I is the initial value.   ($400,000-$500,000)/$500,000= -0.2. A negative value means that the house fell in value. Thus, the value of the house dropped by 20%   Answer -20%
<result>D</result>
A house sold for $500,000 in 1990 and sold ten years later for $400,000. By what percent did the value of the house change?