SOLUTION: A stock decreases in value by 20 percent. By what percent must the stock price increase to its former value?

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Question 192398: A stock decreases in value by 20 percent. By what percent must the stock price increase to its former value?
Found 2 solutions by edjones, checkley77:
Answer by edjones(8007) About Me  (Show Source):
You can put this solution on YOUR website!
Let the original value be x.
x-.2x=.8x value of stock after a 20% drop.
.8x+.2x=x
.2x/.8x = 1/4 = 25% percent stock must rise.
.
Ed

Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
X-.2X=.8X
X/.8X=1.25 OR 125% INCREASE IS REQUIRED TO GET BACK TO THE ORIGINAL PRICE.