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Rick
twofold = doubled = 100%
it's a little scary that so many people have this wrong
botwolf
I agree that you're right, Rick, but someone could take it as an *increase* of double the amount, which would be a 200% increase and a final result of 300% of the original. If you fold a piece of paper twice (two folds), you now have 3 sections instead of 1 :)

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