Re: Is 70ms 14 or 12% faster than 80ms ?

[Oliver Kroth <oliver.kroth@...>]

Am 15.05.2018 um 13:19 schrieb Albert Chan:
> Is 70ms 14 or 12% faster than 80ms ?
>
> Reading many stackoverflow response, I am still confused.
> Most answers claimed (1 - 70/80), or 12.5% faster
>
> If the math is right, it is impossible to be 100% faster.
> 10 times faster (1000%) is meaningless (time is negative)
>
> I normally avoid using "percentage faster", and prefer ratio:
> Speed at 80/70 = 1.14X
it takes 12.5% less time
that makes it 14.28...% faster (1 / (1-0.125))

--
Oliver