document.write( "Question 192398: A stock decreases in value by 20 percent. By what percent must the stock price increase to its former value? \n" ); document.write( "
Algebra.Com's Answer #144448 by edjones(8007)\"\" \"About 
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Let the original value be x.
\n" ); document.write( "x-.2x=.8x value of stock after a 20% drop.
\n" ); document.write( ".8x+.2x=x
\n" ); document.write( ".2x/.8x = 1/4 = 25% percent stock must rise.
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