CBS News: $100,000 CD vs. $100,000 money market account: Here's which can earn more in 2026 $100,000 CD vs. $100,000 money market account: Here's which can earn more in 2026 The interest earnings on either account this year could be significant.
Here's what savers should consider now. The flow rate increases 100-fold (one hundred-fold) Would be a more idiomatic way of saying this, however, the questioner asks specifically about the original phrasing. The above Ngram search would suggest that a one hundred has always been less frequently used in written language and as such should probably be avoided. Your other suggestion of by one hundred times is definitely better than a ...
100 000 at 4 interest, Yes, the correct usage is that 100% increase is the same as a two-fold increase. The reason is that when using percentages we are referring to the difference between the final amount and the initial amount as a fraction (or percent) of the original amount. Why is "a 100% increase" the same amount as "a two-fold increase"? If soap A kills 100% and soap B kills 99.99% of bacteria, the remaining amount of bacteria after applying A (0%) is infinitely smaller than the remaining amount of bacteria after applying B (0.01%). Therefore A is much, much better.
100 000 at 4 interest, You can see from these examples that 0.01% gap behaves differently across the percentage scale. People often say that percentages greater than 100 make no sense because you can't have more than all of something. This is simply silly and mathematically ignorant. A percentage is just a ratio between two numbers. There are many situations where it is perfectly reasonable for the numerator of a fraction to be greater than the denominator.
