



 
Hi Fred. The word "increase" might make you wonder if you should divide $2500 by $500 rather than $3000 by $500, but really it is universally understood that the word is just part of the whole term "nfold increase" and has no practical effect on the meaning. When we say "the stock went up twofold" or "it had a twofold increase" or "it doubled", we are saying the same thing in all cases. A twofold increase means the final amount is twice the original amount. So going from $500 to $3000 is a sixfold increase, because $3000/$500 is 6. Don't let the word "increase" confuse you, just chalk it up to another one of the many peculiarities of the english language. Stephen La Rocque.  


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