SOLUTION: how do you find percentage when they give you the original and the new numbers

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Question 57769This question is from textbook algebra 1
: how do you find percentage when they give you the original and the new numbers
 This question is from textbook algebra 1

Answer by oberobic(2304) About Me  (Show Source):
You can put this solution on YOUR website!
The simple rule for computing a percentage change when given an original number (oldValue) and a new number (newValue) is:
+%28%28newValue+-+oldValue%29+%2F+%28oldValue%29%29+%2A+100+