Question 292269: Why is $10 to $20 a 100% increase, while $20 to $10 is a 50% decrease. Explain your answer. Found 2 solutions by Alan3354, richwmiller:Answer by Alan3354(69443) (Show Source):
You can put this solution on YOUR website! Why is $10 to $20 a 100% increase, while $20 to $10 is a 50% decrease. Explain your answer.
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It's based on what the change is from.
From 10 to 20 starts with 10. 10/10 is 100%
From 20 to 10 starts with 20. 10/20 is 50%
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What you start with is the base.
If you try to do it any other way, it's a lot less meaningful.
