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I've often wondered what "an order of magnitude" meant exactly.

The author defines it as 100% (larger, in this case). Is that correct?

One order of magnitude is a 10 factor, it can be smaller or large. So, 3 order of magnitude smaller is something 1000 times smaller.

It's change by 10X, typically.

You're right, that's how he got 10,000% -- 10x and then another 10x . I thought he had done 100% times 100%...

Thanks for the reply.